Picture E-Mailer
i look at reddit.com a lot, and i saw a post on /r/somebodymakethis that i really liked. the idea was that your android phone should e-mail you the photos you take automatically. i set up a FileObserver to look at /sdcard/DCIM/Camera and used some e-mail code to get this to work. it only took me a few hours, and i'm really happy with it so far.
market link it costs $1US.
LeCalc
this is my first Android app. when i got my android phone there really wasn't a decent general purpose scientific-ish calculator available. being a turbo-nerd i find it very convenient to be able to compute expressions like 25-37+2*(1.22+cos(5))*sin(5)*2+5%2*3*sqrt(5+2) wherever i go. according to LeCalc, the answer is -9.8
download lcalc on android market! it's free!