Are you asking if the n900 is a better 'mini tablet computer' than ICS droid?

If you want a 'smart mobile telephone', then get the android. You will love it. It looks just like a telefunkin' u47. It has loads of appz and gamez.

If you want a mini tablet computer then use your n900, be warned however, as a 'smartphone' it sucks goat ballz.

I have no idea what you have installed. If you install cssu-testing+kernel power v50+some other stuff you will now get overclocking, compcache, smartreflex,720p recording/playing and access to ALL of debian. This stuff increases funcionality and fixes the battery life issue. This makes for a very satisfying mini pocket computer PC thing.

You mentioned you have been using an e71 quite happily. This suggests to me that you in fact want a smart-telephone.

No, it is ok. You do not even need to thank me. Hey, I will even dispose of that shitty n900 for you, just mail it out.