this is very resourceful topic.
i have setup Garmin and Nokia messaging based on tutorial here.

Garmin drain battery very fast. never hang so far in 45minutes usage and always re-route. version 5.0.50, orientation = 3-dimensional.

Nokia messaging works as great as BB. I can sync it manually whenever I want by setting "Synchronise new updates" to Off/On. Update interval (=Manual) option does not available if you setup email account from Nokia messaging website. However, if you setup emails account from handphone, this option is available.

happy topaz brown user reporting