If i dont change Marketplace in U2M8107 more than 3 times, marketplace work.
Before i change marketplace to LUMIA 800 -> Omnia 7 -> LG and marketplace break and all apps. If i stay in Nokia it work all time.
I like Nokia marketplace and i dont change it I wait to nokia drive 2.0
In new 0.8 version i hope this work to Nokia Lumia 800 (HTC Mozart).
Sorry for my eng im polish
I can't make this change for standard because if anyone use a Nokia market on other device this app don't work however, I can made a personalized version for you