Depending on price and how well they work I know I would be interested. My dream is to be able to SSH to my rigs power when away on my phone.
Personally I want a product that does it like you mentioned I really don't like building things with electricity. There are some expensive options and DIY options. But if you come up with a decent priced pre-made option that would be great for me. I have a feeling for a few others. Show us a prototype please!
Also all kinda depends on price. It's one of those things if it cost's more then a bit of downtime costs then its hard to justify.
http://www.surplusserver.com/products/Computer-Equipment/228/APC_AP9210_Master_Switch.htmltaaadaaaaaaaaa
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set your mobo to power on automaticaly and log into your apc strip and power it off and on