I also got a Samsung Galaxy S 2.

Still use my N900 for work things, emails, server admin

Rooted my S2 the day I got it, I hated all the Samsung rubbish on it, now running Foxhound3 ROM with siyah kernel, which is nice... I hate all the Apps not being free/open source... Hate the market but meh... I love messing around with new ROMS, but I think it'll wear off soon, I may sell my S2.

For the time being, I am going to use both, people do look at me funny when I have 2 phones though

EDIT

Android doesn't perform anywhere near as good as meamo does, whether this is because of tweaks I don't know, but, I was moving 2 fairly large files to the SD card in Android and the phone was almost crippled, do the same on my N900 and it remains totally usable.