Why porting something that is already considered obsolete and unsupported. You will waste lots of efforts and nerves to receive something that won't be adopted widely. Even if you receive good build of symbian that is stable enough to replace MeeGo. What about Nokia maps? What about OVI support? What about crippled browser?

Better join MeeGo team. I'm sure they will be happy to have some more skillful developers, with knowledges in hardware/drivers staff.

Even maemo community will be happy with more developers working on current system problems.

What about nitdroid? Telephony there is still not working.

Anyway it is up to you to decide as you have to passioned about the project.