As you say, I'm waiting for Imageprint for the iPF5000. But I even use my own profiles at times with Imageprint. Sometimes mine are better than theirs, other times not.
Yeah I agree with this. I have Imageprint for my Epson 2200 and overall the IP profiles are very good. But I just started making my own profiles with my recently-acquired Eye One spectro. With my profiles the reds and blues are noticeably better, whereas with the IP profiles the greens are usually better. Sometimes it's advantageous to have multiple profiles to choose from -- you can pick one based on the particular image you're printing.