I purchased a Nokia Lumia 610 in Denpasar, Indonesia for around $145. All the phones are unlocked and unbranded. My favourite Dell Venue Pro has been sent away to have the glass replaced (yes, I dropped it).
The phone had 7.8 on it right out of the box. Connecting to Zune revealed that no additional updates were required. Was logged back onto my exchange account within minutes and back up and running.
7.8 is cool, but really, there is no big difference. The extras that are good (over the DVP) are the internet sharing utility, which work surprisingly well. The screen is ok. The camera is ok too.
It is a cheapy standby phone for me, but would recomend it to anyone. Skype and a few other apps are not compatible with it, but really it has the all the stuff that is important.
One thing I noticed is that I cannot seem to locate the setting that has the camera auto-upload to SkyDrive. If anyone can point me to that it would be much appreciated.
Cheers,