Theres this collar on ebay called pet talk you are meant to record the pets details on it. I'm quite interested in it, just wondering has ever used it and is it any good?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=4392442638&rd=1&sspagename=STRK%3AMEBI%3AIT&rd=1

Not a bad idea but still not as good as a chip & tatoo as collars can easily be removed or lost. Good for things like vet and medication details though.