I have the same problem with a different Bluetooth keyboard. The soft keyboard won't display, so it knows the keyboard is there, but typing does nothing. If I switch to a different app, the typing works fine. It will sometimes start working, then quit without any pattern I can determine. This on an iPad 3 with pocket cloud pro.
more information. on my ipad3, if i touch the keyboard icon on the bottom icon list, and the ctrl alt, etc toolbar is displayed, the bluetooth keyboard works. as soon as I click the X in that toolbar to close it, the keyboard quits working again. sometimes it will work initially when i enter pocketcloud, but after the keyboard icon has been touched, one of the keyboard toolbars must be active or the keyboard does not work.
this is with manual connections. I haven't tried auto connections. The only connection type I am currently using is manual connections, RDP, to Windows 2003 and 2008 servers.
What make and model of keyboard are you using? Is the Keyboard Layout set to English in both PocketCloud and Windows or something else? I haven't been able to reproduce with my setup yet.
The keyboard is an Adesso keyboard, and is a keyboard and case combo, although the keyboard can be removed from the case. It seems to work fine for everything else, I'm typing this with it actually. The keyboard setup is English (US) in both.
More information. The keyboard problem only seems to occur when I'm connected using Cisco's AnyConnect VPN client for iOS, and the RDP connection is the first connection I make after activiting the AnyConnect VPN, and that RDP connection is to a host on the 'other' side of the VPN connection. If after establishing the VPN, I connect to one of my local servers, it works fine, and the connections to the remote servers work fine after that (without stopping or restarting the VPN). If I first connect to one of the remote servers after establishing the VPN, the keyboard only works with the 'CTRL' 'ALT', etc. toolbar displayed. If I disconnect from the remote server, connect to a local server (all without disconnecting the VPN), the local server works, and if I then disconnect from the local server and connect back to the remote server, it now works fine. If I stop the VPN, restart it, then connect to the remote server 1st again, the keyboard again only works with the special key toolbar displayed. Very odd.
Well, my last post is not correct. It was behaving that way when I posted, but now the keyboard doesn't work in any connection configuration unless the special key toolbar is displayed. I'll keep trying to narrow the problem down, it is sporadic, which is always a difficult thing to fix. Occassionally it works fine, but it never lasts.