Same problem here. Another issue is that occasionally mobile agents will not be directed to the mobile site. If i deactivate and then reactivate the plugin it seems to fix that issue. Still, I am not able to switch between mobile and desktop version. Maybe these issues are related? I’m guessing cookies might have something to do with it.
Okay – I think I might have figured something out! I think there is a conflict between WordPress Mobile Edition and WP Super Cache. If I deactivate Super Cache then everything seems fine with Mobile Edition. There also seems to be a distinction between turning caching off within the Super Cache plugin and actually deactivating the plugin altogether. Only turning disabling cacheing but leaving the plugin active seems to disable to option of coming back to the mobile site once you have exited it. I can only restore full functionality of Mobile Edition by totally deactivating Super Cache.
This is a bummer because I really desire the functionality of both plugins.
