I've been planning to use one of my Dakota cameras just for this kind of thing. Wire up the shutter to a relay with a 555 timer on the end and you are done!
Attaching it to some kind of lightweight platform and tethering it in two places as this chap does would also be a good idea.
Clearly you aren't going to get the fantastic shots like his, but they are certainly unique and cheaper than hiring a plane or helicopter!
I think he must be using some kind of kite-eating tree repellant. There is no way I could hook up expensive equipment to an expensive kite and get away with it.#
edit: My word! Those 360 panoramas are stunning! Consider the other options to get photos like that and I think the kite methods beat them all hands down in every aspect! All you need is wind...
Gareth