I had a go at the PS2 port of Lemmings recently. Very well designed (par for the course being a T17 product), nice graphics, good music etc, although nowhere near as cool as it would be with a pointing device instead of a controller. The level designer looked okay, and of course being a bastion of online entertainment, sharing levels made with the PS2 has NEVER BEEN EASIER*. You were allowed to mix and match tilesets regardless of environment, and they appeared to be broken up into more smaller, squarelike pieces than the original. Of course, the controller-based interface made level-editing a lot more finnicky and effort-intensive.
The EyeToy part didn't integrate very well. It had the full aura of a tech-demo hastily slapped on the back of a retail product after the marketing department mistakenly trumpeted it as a feature. No graphics, music, or styling is shared with the Team17 PSP port. Also the gameplay is fairly unmemorable at best, irritating at worst; this is mostly because when you start moving about, the game distinguishes poorly between when to throw Lemmings hurtling into the sky and when to crush them like ants.
* Simply send a seperate PlayStation memory card by return of post to each prospective tester