Looks like Mike Furrey has some inside information...

http://www.profootballtalk.com/2009/02/15/lions-leaning-to-culpepper/

I'm from the camp that would like the Lions to "build the trenches" in the draft rather than go for a QB, so i see this as good news (but yeah, PFT is pure speculation and who knows what Furrey's intentions are).  I think the only way this is confirmed is if Dan O isn't signed before free agency opens up.  There is no way he comes back with another QB already named as a starter, without the opportunity for open competition.

I'm undecided on how I feel about C-Pep as the starter.  Yeah, he hasn't exactly put up great numbers, but I'd be interested to see how he plays after a full off-season/pre-season with the team.  I'd still much rather have open competition with Dan O in the mix.  Better draft class of QBs next year or a maybe a project QB late in this draft, depending on availability.