fMobi is on Nokia Store for Symbian but he hasn't been able to get it back for MeeGo. Nokia took away the apps after people has complained of the function. You can use a web address from PC to sign in for fMobi and after that it's woork. I posted that link in the fMobi thread.

Edit:
MeeGo users should authorize via this link http://on.fb.me/10UprXy (via pc) and then login to fMobi.