Originally posted by Adam Isn't there one on the roadmap, or am I thinking of the DA*?
There is, but it appears to cover around the...25-35 range. Seems like it would overlap with a DA* lens for sure.(And be fairly low zoom, to say the least) Though, I think a Limited 20-40 might be an interesting lens, albeit taking us back to the olden days of zooms.
In regard to the 18-270, I wish they'd do more of that sort of thing, if a manufacturer doesn't want to "Waste time" on K mount, buy up rights to produce their own copies. Granted, they'll make less money this way, but they'd keep their smaller customer base happy.(Which seems to be Ricoh's mission as of late)
Edit: Could also be that they're all moving to HSM/USM/SDM/PZM etc..., which no doubt costs a bit to develop for a mount.