I got mine yesterday "upgrade" from a 935 - Initial impressions are that it's a 935+. The maps feature - ability to use heat maps when you're away from your known routes looks like it may be useful. Not really dug into the training features yet - there are a lot of them though.
Case wise it's basically identical - i changed the black strap and if I hadn't told my girlfriend she would never know i'd spent the money.....menus scroll across the screen more nicely than the 935 (not sure that justifies the cost)
You can essentially look at OSM and get about 99% of the way there. It's what Garmin uses for the maps on the FR945, before they apply a bit of special sauce in terms of routing data under it tied to their heat maps.
Cheers for that - had a look at the OSM maps for my area and I was half expecting something along the lines of Ordnance Survey (it's a UK thing!) if you know those, with some sort of contour data - but it's no biggie - as long as there's trails then that's good for me. (although the area I checked out was a local 70.3 I did last year and some of the footpaths used weren't marked.
I'm definitely interested in a 945 - just not sure it's worth the premium over the 935 at the moment. (In the UK, there's roughly Â£200 between them at the moment)