imo the "Code for Android first, and iPhone/iPad second" suggestion to "Apple developers" has very little merit for most Apple developers For developers, it will make more sense to distinguish between ideology/opinions of bloggers and cold market realities. For starters, revenue returns of Android apps are generally a small fraction of revenue returns for identical iPhone apps in spite of the fact that iPhone owners…
The Twitter app will work on any Android phone running the current version of Android (2.1) and above. It won't work on older versions of the OS. That's not so complicated or unusual is it?