Im in the process of upgrading from my 60Cx to a Zumo or 276c. There is also a new model called 278 with more memory. I consider myself an advanced GPS user. The Zumo with its touchscreen, BT and MP3-player appeals me, but still I have read some negatives about autorouting etc. Are these issues solved in later software-upgrades? The 278 is very nice, too, but hasnt got the touchscreen etc. It also have an older generation of chip which seems to be not as sensitive as the one in the Zumo. Which would you go for?