The iPhone app Tap Tap Revenge has been downloaded 10m times

"In all, we have seen well over 10 million unique installs of our apps since the App Store launch (10 million on Tap Tap Revenge alone). Tap Tap Revenge is played a million times a day. Literally. That means well over 100,000,000 games played!"
Source: Tapulous blog, 22nd April 2009

Mobile uploads to YouTube have increased by 400% per day since the launch of the iPhone 3G S

"In the last six months, we've seen uploads from mobile phones to YouTube jump 1700%; just since last Friday, when the iPhone 3GS came out, uploads increased by 400% a day.
This growth represents three things coming together: new video-enabled phones on the market, improvements to the upload flow when you post a video to YouTube from your phone, and a new feature on YouTube that allows your videos to be quickly and effortlessly shared through your social networks."
Source: YouTube blog, 25th June 2009

iPod Touch and iPhone demographics compared

"iPod touch users are significantly younger than iPhone users. 26% of iPhone users are under 24, compared to 69% of iPod touch users. Both devices are over 70% male and have a similar ethnic distribution."
Source: AdMob Mobile Metrics Report May 2009
Also: The original blog post from AdMob, 22nd June 2009

More than 200m computers have at least one P2P application installed

"Globally, estimates from file-sharing research firm Big Champagne place the P2P universe at more than 200 million computers with at least one peer-to-peer application installed, and operators of the popular Pirate Bay torrent tracker have identified more than 25 million "peers" who have used their site alone to exchange files."
Source: Mike Harvey, “ Internet pirates walk the plank over free downloads; Four in court over
filesharing site with 25 million users Sweden,” The Times, February 16, 2009, cited the report The State of Music Online: Ten Years After Napster, Pew Internet & American Life Project, June 2009

68% of American households play computer or video games

More stats in the presentation here
Source: Essential Facts about the Computer and Video Games Industry, ESA 2009

22% of tweets include a URL

"- 22% of tweets include a URL (‘http:’)
- 36% of tweets mention a user in the form ‘@user’; 86% of tweets with @user begin with @user and are presumably a directed @reply [or 'mention']
- 5% of tweets contain a hashtag (#) with 41% of these also containing a URL
- 3% of tweets are likely to be retweets in that they contain ‘RT’, ‘retweet’ or ‘via’ (88% include ‘RT’, 11% include ‘via’ and 5% include ‘retweet’)"
Source: Stowe Boyd citing statistics from a Microsoft draft report by Dinah Boyd et al, 20th June 2009
Full report here - but beware - it's draft only, and not final results or conclusions

87% of Wii owners in Japan play on the main screen in the house

"Bring the family back together in the living room is Nintendo’s approach for the future. As Nintendo researchers found out 87% of Wii users use it on the biggest screen in the house, which is still the one in the living room. With the introduction of new game types like Wii fit and Wii sports, as much as the Nintendo DS, Nintento could expand the gaming population worldwide. Both devices are used by both sex and by a wide range of age groups. In average more family members use the the same Wii as other consoles are shared. Now Nintendo tries to widen up the variety of things you can do with a single gaming device by establishing one machine that satisfies all kinds of users in all possible ways."
Source: CyberMedia blog, 11th May 2009

Twitter users by country

From April 2009.
Source: Sysomos 'Inside Twitter' report June 2009

Chinese site QQ generated an estimated $500m in profits from avatars and virtual goods in 2008

"In China, a number of services rely on avatars and virtual goods. The most successful is QQ
(Tencent, 1998), which recorded an estimated 1 billion USD in sales and 500 million USD in
profits in 2008, making it the leading avatarbased service by users, revenues and profit
worldwide."
Source: From Virtual Worlds to The 3D Web report by PlusEightStar, March 2009
Alternative link

1m iPhone 3G S handsets were sold in the first weekend

"Apple® today announced that it has sold over one million iPhone(TM) 3GS models through Sunday, June 21, the third day after its launch. In addition, six million customers have downloaded the new iPhone 3.0 software in the first five days since its release."
Source: Apple press release, 22nd June 2009

70% of Japanese social network users access most often from a mobile phone

"Which do you access SNS from more, mobile phone or computer? (Sample size=321)
Computer 14.0%
Mobile phone 70.4%
Both about the same 15.0%
Don’t know 0.6%"
Source: Point On Research, cited (& translated) by WhatJapanThinks, 10th June 2009
More stats available on the site.

1 billion messages a day are sent on Facebook Chat

"Facebook Chat usage has increased steadily since its launch last year, and this week we reached 1 billion messages sent per day."
Source: Facebook Engineering Notes, 16th June 2009