914 karma · joined March 7, 2007
I develop software for iPad, iPhone, and (just a little) OS X. I live in Atlanta, GA.
Past: Currently doing a tour of duty with my wife in Augusta while she finishes med school.
I have an educational app as another data point: $6 in 2 days with http://slidetorock.com/apps/MakeChange-change-counting-kids-... - I can't seem to find my own app on the iPad unless I actively search for it though
In fact, my karma would be about 1,000 points higher if I'd simply remember to submit the online versions of some of the articles. They're typically highly regarded on hn.
I try to work my abs and lower back, as well as stretch my hamstrings.
As for sitting up straight, I think the most recent guidance is that a 120-135 degree thigh-to-back angle is optimal: http://news.bbc.co.uk/2/hi/health/6187080.stm