i've been using N97 mini for about a few days already....seems to behave quite erratically sometimes  ...these are the bugs that i've encountered so far...
1)  sms received but listed under a different name...e.g. 'A' send me sms, but the phone shows 'B' is the sender...confirm sent from A coz i asked liao...then 2 minutes later, 'C' sends me sms, again 'B' shows up as the sender...weird! after restart phone, back to normal...

2) twice after i end received calls (about 3-4 minutes conversation), the phone hangs...only bottom half of the screen has display...top half blank...the bottom half can press on-screen buttons, but no response...after about a minute or so, phone restarts itself and everything back to normal...WTF?! 

3) when i receive incoming calls, seems there's 2 types of answering method...totally random...sometimes, screen shows 2 button, 'answer' and 'reject'....other times, screen will show 2 slider bars, 'slide to answer' (slide to right direction) and 'slide to unlock' (slide to left direction)...i can't seem to find any settings to choose which method i wan.... 

just wondering, anyone has the same experience as me?  i'm on firmware v10.0.020...is there any newer firmware?
apart from the 3 'bugs' that i've encountered, i find N97 mini to be quite nice...

pros:
- phone feels solid and high quality (due to metal battery cover and also the bronze shade at the back  )
- touchscreen is responsive for a resistive screen
- battery life seems to be acceptable, can last 2-3 days of normal usage (for me at least!)
- tones and voice loud enough
- camera is good

cons:
- phone sometimes behave erratically (refer above)
- when 'waking up' the phone from standby mode by pressing menu button, screen is very dim, unless u unlock the phone
- bass in music player is very weak even in high bass equalizer mode
i'll keep updating of any irregularities if i find any along the way...