I downloaded Smos on Nov. 20 (V1.0) and the 15 minutes donation was already in the image and properly advertised on the website update page if I remember well. It was introduced after being proposed by someone on this forum thread.
By the way I have no problem with this, I think this is legit if you consider the good support he provides, plus web hosting, server bandwidth...
Guys, if you want something without restriction, build it yourself and do the debug yourself... If you can't, just accept the rules.
Thanks for understanding, people doesnt know how this is hard, and how match bandwidth, server, mytime costs.
Its on the navbar, so all can see it, i dont know whats the problem about less then ~1%.
Here is TIPS now:
http://www.smos-linux.org/tips/and it will be more soon.