Are you by any chance using the OI file manager to try sending files?
This phone has been released for a few months already, no doubt it'll seem like it's not very popular. But before the Ace came out, it's a pretty darn hot phone. 2 millions unit has already been sold, that figure alone says it all.

Here's the thread that used to be used to discuss about this phone before this official one: http://forum.lowyat.net/topic/1562717