What audio formats will the iPad play/support?

The Apple iPad supports the following audio formats:

HE-AAC (V1)
AAC (16 to 320 Kbps)
Protected AAC (MP4 from iTunes Store)
MP3 (16 to 320 Kbps)
MP3 VBR
Audible (formats 2, 3, and 4)
Apple Lossless
AIFF
WAV