While I'm all over you getting an iPad (I'm primarily an iOS dev), the Nexus line of phones, other than the G1, have shown markedly more updatability than the run of the mill random crapware phones you get for free by doing X or Y.
Perhaps you'll get a few years of updates out of it?
What is future proof exactly? While updates matter, how it's bad not to have them? It's like saying you don't like the Android (that's fine) and you will like the next one (that's weird).
Perhaps you'll get a few years of updates out of it?