I have several features that I would like to see.
1) When a file (or workspace) is included, that it not actually be physcially copied by QF, but simply referenced. We go through a fairly extensive set of acrobatics to break up our large workspace into many smaller ones and include them into the one larger one. But if we save any changes to the larger one, all the text of the smaller ones gets included!
To work around this, we make changes in the larger workspace. If it works, we then figure out which other smaller workspaces to modify, then throw away our larger workspace and get the original one back to see if our changes worked.
2) If there was a cleaner way to diff files without getting bogged down with all the Z-order changes, that would help tremendously. Any chance Z-order information could be kept in a separate file so that Qlarity code could be diff'ed easier?
3) CVS integration in QF would be nice and may eliminate 1) and 2) above.
4) Though I'm probably the only Mac OS X user customer, I'd still love to extricate Windows from our development tools. (Anyone working on a GNU QF?

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5) Editor changes: triple clicking a line would select the whole line.
6) I would like the ability to find an object in the Object Tree view. We have hundreds and it is cumbersome to locate them.
7) I would love to be able edit the source files in my own editer, where I can really fly, and have QF use those files in real-time.
My favorite features include the ability to simulate the code prior to commiting to the hardware, connecting QF via Ethernet or serial line to our hardware to debug, the object properites are complete and consistent and that is great.