The Coolest Cat Flap
Do you have a feline friend at home, if so he should have his own little door and this is the coolest one I’ve found to date, the Elite Super Selective Cat Flap.
The elite cat flap is compatible (not sure if that’s the right word) with up to 8 cats and can be programmed to allow your different cats in and out access at different times of the day. It also has an LCD display so that you can instantly see which cats are in and which ones are out, cool!
Further info can be found at Pet Mate, who also do a version for your dog. For the ultimate in cat tech you could always combine it with the automated rotating litter tray or would that be a bit OTT.