It will be even faster because of the 1 GB of RAM.
The thing I like most about my N900 is that it has great community support, overclocking capabilities, lots of ways to customise it, multiboot and so on, and this is the only thing that another phone couldn't offer me before it, and that's why I've kept it for over a year: It's the only one that can do so many, even though it doesn't have so many games/apps as symbian, but the apps you can get are REALY usefull. I can't remember the last phone I've kept for such a long period, and if I'll want an upgrade, my dream phone will be an N900 beast with 1 GHz dual core processor and 1 GB RAM. Too bad the N9 doesn't have a qwerty and N950 is a developer phone only.

And on top of that, I bet that if Nokia would have offered full support for the N900 as they promised, a lot of N900 users wouldn't have gotten a new phone for a long time. Too bad that most of the companies think at quantity, not at quality.