The 701 uses a celeron 900 chip downclocked to 630mhz. This downclocking is largely swept under the carpet, I was enraged when I found I'd been robbed of 1/3 of the processing capacity. Fortunately there's a bios or two floating around which lets you run it at stock again. Anyway, not an atom.
75 is fine for a mobile cpu. Weird that it's this hot though. Can't say I've ever checked the temperature of my one, sorry.
^fan duct