It really doesn't matter if you buy an Android or a Maemo phone - in matters of lost functionality - the loss is equel. In both cases you'll benefit quite a lot, performancewise if you can gain access to a WiFi hotspot (Your camous might be covered).

But if you love to tinker, then you'll get more free hands with the Maemo device (N900). It supports not only GTK+ and Qt apps, but also Python, Java and more.