"Donating" dialog is quite annoying
I am all for giving incentives to developers to create UT apps, but I find the Donating dialog is too much in your face. And it also plays this nice little trick on me, where I think: ugh, another confirmation dialog, a'la are you sure you know what you are doing, daaaa, yes, I am! ok let me hit the biggest, most central, most green button, to get the nag screen away, oh, oh, no, wait, no, I need to hit the grey button!
Apart from the fact that I think the dialog is too much, I am also wondering whether it is in the right place. I mean, even if I am a very thankful user of an app, the moment for that is probably not when I install it. Chances are that I don't know a lot about the app when I install it. The moment where some kind of donation nag would make more sense is after I know the app well, and have grown really appreciative it. That moment will be months away from the moment when I install it. That, being said, I don't know a simple solution for where, how to place a better nag screen. :-P
Bottom line, I would suggest to remove the dialog.