I have a couple of suggestions that have been festering. Here's the usual pre-apology for possibly, unwittingly parroting other players' ideas, but in my defense we can only search titles and tags, not posts ;P

1. A way to make pets who are available for the Pixpet Lottery more visible. Perhaps a page with a list of pets who are currently at home, or the usernames of people who have available pets. And a privacy setting to opt out of this, for those who want it (I don't know why they would, but hey).

2. This might be a tall order, but I was thinking, if Pixpet is inspired by Pokemon, it would be interesting to see different ways to evolve future pets (in addition to evobars, not instead of). This idea would take advantage of systems that are already in place. For example, after reaching the right level, one pet might require you to play the Pixpet Lottery X number of times before it can evolve. Or, you have to successfully sell an item for X amount of pixcoins at auction. Or a really difficult one for a rare pet, like using evobars X number of times. And so on.