Zup?

Zup's messaging system lets you send and recieve messages using your own custom message lingo.

Use Zup? to read and write messages.
Write a message with lingo, and text content.
Customize Lingo by creating personal shorthand phrases. Zup? comes with a set of phrases, but a custom set can be created by adding and deleting to the list. The lingo is translated in the message area and can be delivered in full text or as lingo acronyms.
Create your signature and sign messages instantly.
Send Zup? messages to any cellphone or to email addresses.