When used with a burner, will the heat spread evenly or will there be ultra hotspot in the middle?

I'll second Jason's recommendation on the hard anodized aluminum with the non stick coating. I just used one last weekend to cook up a meal with my MSR Pocket Rocket while camping at 10,500 feet. A few items looked like they had burned to the pan, but all it took was one swipe with a paper towel for clean up. I might just replace all of my pans at home with these.

The other great thing about this fry pan is that it's, first, aluminum which is the best material (based on weight vs. heat distribution) for an even heat cooking surface. It's also hard anodized which also helps in its heat distribution. The quality of these materials is very high-end. Finally the teflon coating is one of the more durable available making sure the stuff your cooking doesn't stick, and then cleans up quickly. I agree with Andrew in that it also depends highly on the stove. If you get a good one (my recommendation is the WindPro or DragonFly) you will be able to cook anything that you do on your home stove.

It really depends on your stove. It will be a little hot in the middle if you use something like the MSR Pocket Rocket, but you can mitigate this by simply turning the gas flow down. The Pocket Rocket is meant for boiling water, but I have had success using it to cook in a skillet. You shouldn't need to have your stove on full flow when using a skillet anyways. If you pair this with something like the SuperFly or WindPro which disperses the flame a bit more, then you would likely have more success in avoiding hot spots.