The limitations are in mostly in our minds. Part of the frustration with web/point and share camcorders is that there is no wide angle, telephoto or optical zoom.
It is understandable that manufactures ignore optical zoom features. You are dealing with a small device design in addition to balancing costs and features.
The thing is that in actual recording situations you find yourself needing to get in a bit closer than you physically can at the moment.
Still, if you have The Flip and a lens adapter this is what yo can do:
Doesn't mean it can't be don't. Now seriously, this is going to probably void your warranty. It might be best to try this on a second hand camcorder or older camcorder first to see if you like it.
I would like a non-permanent option so this is a video by James on another way to add a lens modification to a Kodak Zi8:
Not sure about using epoxy but that is the kind of gizmo I'd want to be able to remove the lens adapter and change according to the situation.
The good news is that most of the lens mods and adapters are inexpensive. This is so cool. I'll keep diving in and see if someone has found a solution that I can imitate and use.