Finally, Google transit info will be available on certain types of mobile phones.

<< Get transit directions in more than 50 cities on BlackBerry and many Java-enabled phones. >>

http://www.youtube.com/watch?v=ZAUunR91VzI

This isn't currently available on the iPhone Google Maps app, but it might be available in the new firmware that is to be announced next week and released soon afterwards.

http://googleblog.blogspot.com/2008/06/get-your-transit-schedules-and.html

These seams also to be some problems with the Google Transit: http://maps.google.com/maps?f=d&hl=en&geocode=17816677458156894841,47.435257,9.349308%3B4064141128139181713,47.425259,9.436828&saddr=Sankt+Galler+Stra%C3%9Fe+%4047.435257,+9.349308&daddr=Rehtobellstrasse+%4047.425259,+9.436828&mra=cc&dirflg=r&sll=47.439438,9.350245&sspn=0.011146,0.02738&ie=UTF8&ll=47.427623,9.388762&spn=0.044595,0.10952&t=p&z=14&start=1