The Android version of Humble Bundle will have Osmos, Edge and Warzone Earth. Users have paid averagely $6 for this app so far. Looking at the features it is offering, the price seems reasonable. In addition, it will also give you Words of Goo. Once you buy the Humble Bundle, it can be run on Microsoft, Mac and Linux. This is irrespective of the price you paid.
Finally, it is completely at your discretion whom you want to give the money to – developers, charity, Humble Bundle or to all the three.