WOW! Finaly 3G is working on my FT3.
Dongle: Huawei E1750
Tablet: FT3 - android v. 2.2-20110316-build nr. frf85b
My how to:
1. After a clean update I install "Quick Settings"
2. With the pen in the sub port, In wireless settings activate "Mobile Networks" »»Data enabled"
3. run quick Settings app. Open "Mobile Data option »» Access poit Names »» Menu »»» New Apn. In my case the only data I put in was the Apn Name (my provider) and the APN = internet. Nothing more. Save and exit.
4. restart the FT3 with the pen and ... VOILA! Done!!!
So simple but yesterday I wast all my day trying to mke 3G work.