We have a loquat tree in our backyard. I only figured out that they were loquats yesterday, by searching on flickr for "orange fruit" and browsing through a couple pages of thumbnails. Yay for flickr, the poor man's fruit identification book.
...and they are very tasty. We need to get a pruner on a stick or something to harvest all of that tasty fruit up high.
If anyone wants some loquats to eat or for seeds, let me know!