The worlds largest multi-touch wall: " 34 million pixels generated by 15 high definition projectors, supported by sound produced by 30 directional speakers"
Twitter beard!: " just insert your face"
Why your friends have more friends than you do: " You are more likely to be friends with someone who has more friends than with someone who has fewer friends"
Cheap, Easy Audio Transcription with Mechanical Turk: " my 36-minute recording was transcribed while I slept, in less than three hours, for a grand total of $15.40"
Opera Face Gestures: " lets you perform frequent browsing operations with natural and easy to make face gestures"
Interesting post on design decisions behind Skype Chat, the best IM out there I reckon
Differentiated presence on GMail chat status, nice touch: " when you know the guy on the other end is using his Android phone, you may decide to send shorter, more concise chat messages"
How rich are you? Humbling.
Square looks cute - the use of the headphone jack is particularly lovely, and I could see it getting uptake from smartphone owners (particularly if the customer hardware becomes fashionable or desirable), but I wonder how they plan to get the merchant side of the infrastructure rolled out to the extent that it's worthwhile.
Via Dom, Appvent Calendar - a free iPhone game every day. Cute.
The two use-cases of mobile - amen;