MeDevil, the developer of iBluetooth, recently announced via Twitter that the private beta should be available for download soon.
On New Years Day MeDevil announced, “Almost finished the transfer manager & transfer ui. Private Beta release is near. ;)”
He also followed up with an additional tweet yesterday, “Transfers (almost) working. Got 40kb/sec transf. speed in tests ;)”
Here is a video showing MeDevil playing around with the iPhone Bluetooth.