Since last night, I keep getting the "invalid stream name" when I visit Google Reader on my iPhone. Going directly to Google Reader works fine, it is when I click on the "Tags" tab, when I get this error. I closed it out and tried again, but still doesn't work. Here is a screen shot:

Google Reader iPhone Issue

Matt Cutts, did you notice this as well? I am a huge Google Reader mobile user and this is painful. I don't see anything reported on Google Groups yet, so I posted my own.