I went out on a leadge, and installed iOS7 on my iPhone 5, and iPad 2, so far most functions seem to work OK.
One very anoying issue I have found is with browsing to my exchange 2010 SP3 OWA webmail portal using the builtin Safari App. When I do this, as expected, I get an authentication window. I enter my credentials, and OWA opens to show me my inbox just fine.
However when I try to click on anything on the page, I am asked to authenticate again, and if I succefully authenticate, I am able to get the desired result. If I don't authenticate, nothing happens.
I tried the same on IOS 6.0.4 and the default Safari App there, and it works just fine.
Have I come accross and IOS 7 bug? Or is there a setting that I can change on iOS7 or exchange 2010 to remede this problem?