I've just upgraded to 5.0.10 (Release 5.0.10_GA_2609.DEBIAN4.0 DEBIAN4.0 FOSS edition) and now when trying to access zimbra in Safari from my iPhone (2.1) I get a white screen that reads:
"Internal Server Error
The server has encountered an internal error"
Any assistance is appreciated.
[update]: the mobile of the version does appear correct via safari and firefox browser under os x.