My "usual" stack for game dev is to create (in-browser) Silverlight games. I've decided I want to branch into iPhone or Android, and decided to go droid because it's cheaper (considering I don't have a Mac).
Having now all the requisite software and hardware, how do I decide which games to code on both platforms and which to not?
In an ideal world, it would only cost me 5-10% more (time/effort) to port it to Android having developed it for SL. But I know the worst case is 100%+ (i.e. rewrite), and that it'll be somewhere in the middle.
Considering everything will likely be free (although it might be worth it to release the SL one free and offer a $5 paid one on Android, not sure), what are factors to look at?