For every other Canon DSLR camera like the 7D, 5D Mark II, 60D, and 5D Mark III you'll need a totally different grip. One good thing about the Rebel series cameras is that they continue to share the same LP-E8 battery type along with the same BG-E8 Battery Grip. A cheap BG-E8 grip for the T2i, T3i, and T4i with decent reviews can be found on Amazon and comes with two extra batteries (Click Here).
The camera bodies are very close in design, but still a bit different. It doesn't seem like you can swap the camera's battery doors (when removed for installing battery grip). For those wondering about the GGS glass protectors working on the Canon T3i / 600D, it doesn't look like a fit. The buttons are close to the same position, but everything is just slightly off. Other accessories such as Batteries, Cards, and Chargers are all the same, so the T3i / 600D should be seamless to drop into any existing Canon T2i workflow...
I posted about this Hague Mini Motion Camera Stabilizer earlier in my blogs, but I just thought I'd share with everyone what a Canon T2i looks like when balanced on the Hague. Now that high quality HD Video cameras are smaller, the Hague MMC is one good option. This stabilizer will only fly the weight of a Canon T2i with 18-55mm kit lens and nothing more. You can find the Hague MMC on eBay (click here)
Mini Camera Stabilizer
One stabilizer that pretty much resembles the Hague MMC but which is a bit cheaper is the MidX (found here).
Other Small Video DSLR Camera Stabilizers
If you're planning on Flying something a bit heavier, the next best option would be the Flycam Nano. You can see how well this stabilizer flies in this video (click here). This is what I feel the best bang for the buck. It can easily fly a Canon 5D Mark II or Canon 7D with a Tokina 11-16mm lens. You can find the Flycam Nano online (click here).
The Flycam Nano
One feature that the Flycam Nano lacks is what are called 'fine tuning knobs'. These knobs are available in some stabilizers for you to quickly and easily get your camera in balance. You simply turn the small knobs and the camera will shift slightly left / right, or shift slightly forward and back. If you need to be quick about getting a camera ready to fly, the Glidecam HD series are the best bet. For small cameras similar to what the Flycam Nano can fly, you'll want to look into the Glidecam HD1000 stabilizer. You can find one of my demo videos (click here). The Glidecam HD1000 is the smallest of Glidecam stabilizers under the HD2000 and HD4000 which can all be found online (click here).
If you're looking to beef up your Camera by adding a battery grip, LED light, or Microphones and need something to carry more weight, the next step up (price wise) would be the Glidecam HD2000-HD4000 stabilizers. You can find the different Glidecam HD models available here. They are all basically the same design, just different sizes to support different weight cameras. You can probably get away with the smallest one, but if you plan on adding something like an LED video light (like this one) , you might want to get the larger Glidecam HD2000 or HD4000. I personally own several different stabilizers, but here's a BTS video with the HD4000 (click here).
In your search for Glidecam stabilizers, you might run into the Pro versions. These will also work great and the difference in the Pro series of Glidecam stabilizers is mainly the lack of 'Fine Tuning Knobs'. They will balance fairly heavy loads and if you don't require the fine tune knobs you can find many of these used for cheap prices (click here). Getting back to the Glidecam HD series of stabilizers, you can find more information about how much weight each stabilizer can carry, along with prices following the links below.