If you are in San Francisco, navigate the MUNI transportation system comfortably with the aid of Routesy San Francisco from Pixelcup. With Routesy, choose which MUNI line you want to ride, and you will receive up to date route information, including projected times and closest stops.Routesy San Francisco
Features
- Complete, detailed listing of most MUNI routes
- Projected arrival times are mostly spot-on
- Inline Google Maps shows you your exact destination location
Limitations
- No iTouch support
- Only works with 3G
- No way to bookmark/save preferred routes
- Travel advisories not included
- Useless if you're outside of San Francisco…!
Summary
Frequent riders of MUNI, and especially tourists, will find Routesy helpful. However, a few more tweaks, namely iTouch support and functionality via WiFi, will enhance this App considerably.
Available
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Complete iPhone Specification Matrix 
It would be most helpful, especially to tourists or people not familiar with MUNI routes, for Routesy to determine which MUNI line to take based on current GPS and user-identified SF destination.
(but great app otherwise. THANKS!!!)