Android hmm, I don't actually have an android device.
Are there specific Android revisions your thinking about targeting?
From the few people who I know have done Android coding, there are a lot of issues about supporting most/all devices, more so then with the iPhone.
There are only 4 files atm that are iPhone specific (Graphics, Sound, GUI, and Input) everything else is done in C, so it wont be a hard port, to other platforms.
I shall look into getting the Android SDK, all I remember about it is that it uses Eclipse.
For now I shall finish the emu core first though, and make a windows "port" for testing/debug. I don't use SDL though, so It wont just be a recompile. Then port it to other platforms hehe.