Nope, nothing like that. I suffered a bug Saturday where the phone became so unresponsive (pegged on 100% CPU usage - the meego-compositor process IIRC) that I eventually opened the terminal by mistake and the VKB did not appear. It was there, I could write, but the system keyboard was invisible. Eventually I was able to reboot the phone.

Have you checked if you have the correct keyboard languages selected in Settings?