There was a recent documentary about him in the UK a few months back. It followed his career and was just brilliant.
I loved him, had all his records, and despaired when he quit and became a Muslim.
But he has recently decided to get back into music, albeit from a more Islamic viewpoint. I think he has at least one, and maybe two CDs out by now...but you'll have to look for it under Yussif Islam I imagine, and not Cat Stevens, but I might be wrong about that. The money he makes goes in support of the Islamic schools he has helped organize.
PS-Yes, Muslims do pray 5 times a day, and devout Jews pray three times a day, and devout Christians pray daily, and some of us pray whenever we like!