I was using Sony ericcson for years, before a decision to move to a nokia N73 because I could use TomTom on it.
This was great because it meant 1 less device to carry about.
Its an ok phone but is really slow and crashes often.

I seen a couple of Sony E's that now run symbian, however not found any information which says it will run TomTom.

Upgrade time is coming soon so looking at what to go for.

Cheers
Lee