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Tuesday, March 10, 2009

iPhone App Developers are like Rockstars

Interesting story from the trenches of iPhone app marketing: Cool, well reviewed genre game, but only $300 in sales in 30 days.

The Numbers Post (aka Brutal Honesty)

As one commenter said so well

I have long suspected there was a rockstar model in iphone apps. Ie, a few rockstars make a fortune, but most people in the business don’t. However, the rockstars get all the press and so few realize how hard it is to make the business work.


Thursday, March 05, 2009

Embedded Widgets for QT

QT now has some stock widgets for touchscreen environments, they look like they'd be great for a Free Motion pointer UI as well

Embedded Widget Demos — Qt – A cross-platform application and UI framework


Wednesday, March 04, 2009

Gaining an Understanding of Deterministic Electrical Noise

We're having a hell of a time with 60Hz AC noise entering our Free Motion pointer then aliasing to all sorts of odd harmonics. Beyond being able to identify bad spikes in the countless FFTs the team's been running, I've been out of my depth in understanding the mechanics of it all. However, Ben found this great article, written at just my level of electronics:

Harmonics in polyphase power systems : POLYPHASE AC CIRCUITS