The internet final pays off. I've always wanted to do this since seeing a low tech version on Blue Peter years ago. I was looking a while back for ways of 'hacking' my digital camera to make it take photos every n seconds, no joy though.

There's a Kite shop just outside Belfast on the Newtownards road I think. The Kite Loft it's called.

There are some really nice kites on ebay at very reasonable prices. You'd be a brave man to send a Sony up on a kite though.

I could give it a parachute...

Would you fancy pooling resources on such a venture? Mr. Keer might be in too.

I would be interested yes. Although I already have a pretty good kite which may or may not do the job, It's a delta kite, but has very good lift and I run it with two different lines, one a 2000 metre line running off a deep sea fishing reel and the other a traditional spool type yolk. I'll offer it for the project, if it passes my lift test at the weekend.

There's a kit with an ice cube timer approach for sale here:
http://www.mtmscientific.com/kap.html
I think the ice cube timer is a nice idea to avoid the shake from a trigger mechanism. The whole kit excluding kite is $47.00 delivered, probably about £8.00 each. Attached to my kite I reckon it would be a useful start...any takers?

Here's another cheaper one that offers International shipping $25.00 plus postage, it uses a trigger mechanism.
http://www.drachen.org/store_kits.html

I am in. But I want to check Maplins and stuff for cheap r/f switches. It might be more fun to get the old soldering iron out, too...