Not sure if this helps anyone decide, but I got my MPx200 from best buy for 49 dollars after rebates, and it came unlocked.

I have been able to install a few apps but nothing too spectacular.

I tried to install something that was from the site for the SPV?? Not familiar with that, but the app installed ok, and then when I set it up (it was a VNC app) and tried to connect, it just exited and did nothing??

Any idea why that might be? Do the SPV phones have a different smartphone OS that might cause the apps to not run on the MPx200?

thanks!