LastPass 1.60 is on the iPhone app store It is for premium LastPass customers only.
It's much better looking now if we do say so ourselves including FavIcons for all your sites.
It makes it easier to copy & paste data out of form fill profiles and provides options such as the much asked for capability to disable the app icon badge which indicates you're logged in. There's a number of stability fixes too.
We're still looking to expand its capability and have a few new features in the works (easier transitioning from iPhone Safari -> LastPass and some additional security options). We're looking at bookmarks, but if there's other features you're interested in please let us know!