The 7D does not. It is a 1.0x magnification viewfinder and has 100% accurate field of view (50mm lens focused at infinity). However, it is a crop sensor so the apparent field of view is smaller, even if it has the same magnification as the naked eye.
*Higher viewfinder magnification combined with larger "apparent field of view" via the finder...for all Canon bodies (except maybe the Rebel line). An image through the viewfinder, with a 50mm lens mounted, focused at or near infinity, should show objects exactly the same size as the naked eye sees them...AND NOT SMALLER than the eye sees them.
get a 7D
The 7D suffers from it too...
The last (35mm) camera to have a close-to-1.0x viewfinder was the Pentax MX (0.97x and 95%). Nikon's largest was the Nikkormat EL2 and FT3 (0.90x and 92%), the largest Canon is the TL, FT QL, Flex R2000, Flex RP and Flex (0.90x and 94%). Note that all of these cameras are manual focus film SLRs.
In the autofocus era, here are the biggest viewfinders from the 'big two': Canon - 620/630/650/RT (0.80x and 94%), Nikon - N2020 (0.85x and 92%).
In the digital era there is only one APS-C camera with a 1.0x viewfinder - Canon 7D (1.0x and 100%). Many other crop cameras come close, namely - Nikon D90 (0.96x), Canon 40D/50D/60D (0.95x), Pentax *ist D/*ist DS/*ist DS2/K10D/K20D/K-x (0.95x), Sigma SD1 (0.95x), Nikon D200/D80/D300/D300s/D7000/D7100 (0.94x).
The largest viewfinders for any less-than medium format DSLRs are the one's found in the 1Ds Mark III and 1Dx (0.76x and 100%). Nikon's biggest are the ones in D3/D3s/D3x/D4/D600/D800 (0.70x and 100%).
The medium format Leica S2 has a viewfinder with 0.86x magnification and 96% accuracy (along with a crop factor of 0.8x, resulting in a normalized size of 1.03 in 35mm terms - which comes out to be 35% larger than the ones in Canon's 1Ds Mark III and 1Dx).
So, I do think a magnification of 1.0x would be a huge step ahead of what is available, or has ever been available.