post or PM me a rundown. You must have been riding it because they didn't have one for me.

I was impressed with the 29ers rear wheel sticking so well that I was tractoring up everything, rocks, steep, sandy, no matter. Out of the saddle I just kept going up, unlike my 26er. Let me know how the 650b rear wheel felt?
I am already biased towards the 650b wheel size and this is the second one I have demoed (the first was the Tracer 27.5). I went to the demo specifically to ride the Altitude and compare it to the Tracer (and not to compare it to a 29r) The Tracer I demoed a few weeks was all aluminum vs. carbon frame/aluminum rear triagle on the Altitude.
First off the Altitude has an adjustable geometry...you can set the rear shock to give you a more slack or steeper seat-tube angle. My demo was set up kind of in the middle with a slight bias towards the slacker setting. However, as soon as I started riding on the trails I realized I was too far back on the saddle and I felt stretched out. So I figured that for me, I would probably set the geo towards the steeper setting for easier pedaling.
However even in the slack geo setting the bike pedaled easier than the Intense when going up-hill. I normally ride 1X9 but on the Intense I had to use the granny gear not so with the Altitude. However, when I started going down-hill and on technical sections, I felt the Intense was smoother and handled the bumps easier than the Altitude.
In the turns, I was really leaning the bike over to see if I could make it wash-out. This bike rails the corners better than the Intense...I remember washing out the Tracer in places where the Altitude just kept rolling along. Once I realized how much I could lean the bike I stopped worrying about it and just enjoyed the ride down McTwist.
But then when I rolled down some of the stunts in Little Moab......I had to get way behind the seat and my arse rubbed against the rear tire a few times and I don't remember that happening with the Intense (and definitely never happens on my 26r unless its really, really steep). When I finished the ride and started heading back towards Jenson's, my lower back was aching again confirming for me that I would adjust the geometry to a steeper setting if I owned this bike.
So in a nut-shell, I felt the Intense performed better in the technical and down-hill stuff but the Altitude was a better climber and much, much better in the turns and flat sections. As far as aesthetics, I don't particularly like the look and color scheme on the Altitude imho the Intense Tracers are much more "sexier-looking" and all the straight lines on the Altitude makes the bike look dated it reminds me of my old 2001 Giant NRS (that's 12 years ago !!!).
And even though they have fun bikes "Rocky Mountain" reminds me of a beer brand and not a bike brand..and the maple leaf on the frame.....I mean, I know they are a proud Canadians behind the brand, but really? Anyway, it was a fun bike to ride but I think you can guess which bike I prefer. However if anyone is interested in the Altitude here's more info from PinkBike
http://www.pinkbike.com/news/2013-Rocky-Mountain-Altitude-27.5-First-Ride.html