For what it is worth - I had 2 N97s which both broke and the software was absolute mince. The N900 is very good but..

No voice Nav
No MMS
No video calls (except Skype)
No support from OVI Suite
No voice recognition
etc

PR1.2 has done very little for me and now If the rumours are to believed yet another handset is going obsolete as Nokia aren't going to port Meego onto it.

Take the iPhone as a comparison - OS4.0 comes out soon and will go onto all iPhones and iTouch, iPod etc.

For me then the lack of support and continuity by Nokia has just cost them my next upgrade. The N900 could have beaten the iPhone but due to the switch from Maemo and lack of Meego support Nokia have taken another wrong turn.

Nokia