Eric wrote in to let us know about Ecardlets, an eCard WebApp targeted specifically at the iPhone. Says Eric:

Ecardlets shows that the Web App SDK is every bit as exciting as the iPhone SDK. We were able to build a rich, tactile, 3-D card experience in a way that can be run entirely through Safari and requires no additional downloads for senders or recipients.

Ecardlets on the iPhone is the first mobile greeting card application that takes advantage of digital photography in such a big way, simply because this is the first platform that has had a beautiful, high-resolution screen.

If any eCard fans out there give it a try, please let us know how it works for you!