Boingo mobile worked fine for me earlier.
I flashed my N800 with Diablo. Then proceeded to install skype which installed successfully.
Next I tried installing Boingo from the Application Manager.

a) Attempt 1 : It downloaded, showed license agreement etc but finally said "Did not install". However it shows Boingo Mobile in my "Settings" menu and also shows Boingo Mobile as installed in application manager. When I click on Boingo Mobile, nothing happens.
I then uninstalled it.

b) Attempt 2: After uninstalling from previous attempt, I tried installing it again and again it said "install failed" but added a menu item and added "Boingo Mobile" to installed applications. I then updated it but it said "update failed".

Finally it does not work.
Any ideas?