App support is bit sketchy.Windows Phone 8 is using NT kernel.It's stated that apps coded for WP 8 won't run in WP 7.X.So if you are looking for Windows Phone which you want to use for a long time I won't suggest Lumia 900.It'll get support from Nokia & Microsoft but not as much as the WP8 devices.
If you ask me I would suggest you to get 920 or 8X.You should be able these phone for 2 years with proper support.

It's the price having a AMOLED based phone.
I guess the production of AMOLED screen must cost higher than IPS screen.Hence the higher cost of replacing it.

http://www.mudah.my/Ori+nokia+lumia+800+lc...rt-18452432.htm
Seems reasonable price.You can try to diy fix.At least you can sell phone rather than leave it to collect dust.

This post has been edited by super_evil_alien: Dec 10 2012, 07:10 PM

Good old SGS II

Dude,it's glass.You want the small glass shards to pierce your fingers?

Oversaturation is part of AMOLED feature.It's depends on individual whether they like it or not.
Personally I like it.Makes the colors pop up more compared to IPS panel.