PulsarBox: Roll Your Own Mobile Social Network

PulsarBox allows you to create your own mobile social network across any J2ME phone.
Content is created via a desktop app (Windows only, download here) that provides an easy, intuitive editor — no developer skills necessary.
Once content is viewed from the phone it is stored in the device (no internet connection required to access it).
Polls, surveys, forms and message boards are supported. RSS updates available.
Tiny commentary: Useful for now, but I find it hard to believe Ning doesn’t have a mobile strategy. PulsarBox beat them to the punch, but their first mover advantage won’t last if Ning creates similarly easy development software that mobilizes their feature-rich networks.