Lately ive been thinking of bying n900 and ive never had one before and would like to have some opinions if I should get one currently I have a N9 and its pretty awesome but there are some things that im not too happy with and I really cant stand VKB...really need HWKB.
and are there any pros and cons compared to N9 (not hardware wise, rather software and user experience wise)

Cons:
Lack of RAM
Severe lack of RAM
Swap hell due to lack of RAM during heavy multitasking
CPU time bottlenecked by slow IO during heavy IO-bound operations
Battery time bottlenecked by the CPU running at 80% a lot.

Pros:
Heavy community support
Kernel-power turns SRVDD1 and 2 on, might double or triple battery life
Sharp screen
HWKB
Body is built like a tank

The user experience isnt probably going to be as good as N9 because the UI can be a bit unresponsive sometimes (especially on devices that aren't overclocked). If you don't mind about that though there is more software on N900 because its a older device and because some games for example are easier to port to it thanks to the HWKB.

thanks so far for the answers, i dont think the unresponsiveness matters too much, my N9 does that sometimes too (especially when browsing web with firefox) and most likely im going to OC if I get one. Mostly what im doing with phone is browsing web and Ive got picture in my mind that n900 has better browser, am i rite?

my n900 is overclocked to 1 ghz constant ( means its always running at 1 ghz ) and well with kp 50 and smartreflexes on both vdd1 and 2 the battery life with heavy usage gets me a full day the device isnt unresponsive i mean i was intalling an app from F.A.M plus texting and browsing the internet the tablet wasnt unresponsive

You forgot the watchdog that kills the N900 whenever it thinks the device locked up, even if you just wanted to compile something.

I haven't used a N9, but i think the n900 is better because of Flash 9 support.
I use opera mostly.

so... you like the n900's full flash but you are using opera?

makes no sense

Gaming in the N900 is great using a Game Gripper, specially for emulators. That can't be compared with any device without a real hardware keyboard.

Old RPG and strategy games are also great thanks to the highly precise resistive screen and the stylus. It also applies to drawing applications such as MyPaint.

I only see the pros

How about he usually uses opera but is happy to switch browsers when he needs flash?