I generally use the ad-based version of an app (if available) for a week or so, then if I find myself using it regularly, I buy the "donation" (aka ad-free) ver

I generally use the ad-based version of an app (if available) for a week or so, then if I find myself using it regularly, I buy the "donation" (aka ad-free) version. I'm not a huge app person, and the only apps I can think of that I've purchased so far are Launcher Pro, GPS Status & Toolbox, and Clockworkmod's ROM Manager. In all three cases, I used the free version for a while then purchased the "donation" version. Edit: I would _gladly_ pay for an ad-free version of Angry Birds.