I'd love to see a feature that will show different moods or statuses
Maybe something like this?
At each stage of the pet, you can upload a number of alternate images. Then randomly throughout the day (or for each day/month/etc...) the pet will change accordingly.
An example of usage:
Adding in 3 different images; grumpy, normal, cheerful. Every hour, these images will cycle randomly to show the pet's "current" mood.
Another example could be that the pet does have those three alternate images. Then have a script to monitor the number of clicks the pet gets. When the pet has a large number of clicks, it'll show the cheerful image. If it's a so-so number, it'll be normal. If it's really low, then sad :)
Edit: Ah crap. Wrong forum >< MODs, please feel free to slap me upside the head.