According to Dan O'Shea in Telephony magazine Dec. 1

1. Multimedia messaging
2. Voice over WLAN
3. Localized content
4. Multicasting
5. Group press-to-talk
6. Remote networking
7. Wireless printing
8. Mobile blogging
9. Mobile community services
10. Industrial productivity

"MULTIMEDIA MESSAGING MMS is sort of like hot apps 1 through 5. The kids in Asia and Europe are all over it. To the U.S., messaging is the initial application, but get ready for more. VOICE OVER WLAN It's the phenom of education and healthcare, where it's deployed for utility. In the enterprise, it could soon be deployed for cost (or lack thereof). SpectraLink, Vocera, Telesym and Symbol Technologies are good sources for what'll happen next. LOCALIZED CONTENT Small town newspapers and municipalities providing content over mobile devices?"