[abh19]

Yes, I believe 1.5 rc2 does this. Create an item in the inbox. Set a context if you wish, then enter the first few letters of your project into the project column. You should see a drop down list of any matching projects. Use the arrow keys to move to the right one, then press enter. When you press clean up (or wait long enough), your item will move to the desired project (it becomes the last action in the list).

This is a great feature and I'm glad Omni added this one.