Ziurim i faktus:

Main WP7 disadvantages:
a.. No system-wide file manager
b.. No videocalling
c.. Limited third-party apps
d.. No Bluetooth file transfers
e.. No USB mass storage mode
f.. No memory card support
g.. No multitasking
h.. No copy paste
i.. Too dependent on Zune software for computer file management and syncing
j.. No music player equalisers
k.. No Flash or Silverlight support in the web browser
l.. No sign of free Bing maps Navigation so far
m.. No DivX/XviD video support

Taigi- sveiki sulauke pacios prasciausios OS rinkoje :)