As for Android emerging dominant mobile OS – That's a huge leap of faith
today.

Android itself is not a complete mobile OS for now. And there isn't a
single fully functional Android device in the market yet (G1 is just a
prototype/test device and Andy Rubin admitted as much). Even with all vendor
and carrier commitments, it is yet to be seen how Android does in real life.

Android has a very good shot of becoming an important mobile OS, but it is
not even there yet, let alone on the way to dominance.

That said, your 'write once run anywhere” is a long longed nirvana among
developers, It won't become a reality anytime soon, unfortunately. But
making it much easier to recompile apps to run on different platforms – this
is starting to happen, and it should become a reality pretty soon. Nokia
might even be leading the way here.

As for Android emerging dominant mobile OS – That's a huge leap of faith
today.

Android itself is not a complete mobile OS for now. And there isn't a
single fully functional Android device in the market yet (G1 is just a
prototype/test device and Andy Rubin admitted as much). Even with all vendor
and carrier commitments, it is yet to be seen how Android does in real life.

Android has a very good shot of becoming an important mobile OS, but it is
not even there yet, let alone on the way to dominance.

That said, your 'write once run anywhere” is a long longed nirvana among
developers, It won't become a reality anytime soon, unfortunately. But
making it much easier to recompile apps to run on different platforms – this
is starting to happen, and it should become a reality pretty soon. Nokia
might even be leading the way here.

Android is likely to emerge as a dominant mobile OS and Nokia really should consider using its Symbian resources to quickly merge with Android.

Several steps could be taken, to achieve this:

1. Port the Dalvik VM to Symbian, so that existing Symbian devices can run Android apps.
2. Develop Ovi apps for Android, so that ALL Android-based devices from ANY vendor can access/subscribe to Ovi services.
3. For Nokia devices, replace Google's services with Ovi services & tailor the UI for a unique Nokia user experience.
4. Consider developing a Symbian emulator, so that Android devices can run Symbian apps (until native Android versions are available).
5. Extend Android to support X Server, as a first step toward full Maemo integration with Android.