The wait is over! If you have been waiting for a VMSpc with a USB port, or a VMSpc that supports even the newest Allison transmissions, your time has come. The JR501 JIB is now shipping. The new VMSpc eliminates the old-fashioned serial port and replaces it with a USB connection. It's tested with XP and Vista, and will also work with the upcoming Windows 7. There is no longer any need for a USB adapter, and you don't need to worry about which you start up first, the engine or the program. It also supports the latest J1939 transmissions and engines, including the current Allison World Transmission. Their are new parameters available with some of the new engines, and additional diagnostic capabilities. The new VMSpc handles all the new stuff. And it still supports the old stuff, too. We didn't sacrifice any functionality from the old JIB, so the new JIB works with the old engines just fine. Improved Product - Same Price Even though we've improved the product, we're not changing the price. VMSpc remains just $395.00, and the PC software is still a free download. Trade-In Program Available If you already own VMSpc and are looking to upgrade, we have a trade-in program for you. Send in your existing VMSpc JIB and we'll ship you a new kit for just $229.00. We're taking the old JIBs that come in, testing and updating them, and selling them again. If you don't need the USB port and have a pre-2007 rig, you can get the VMSpc "classic" for just $229.00. These units carry a full one-year warranty and are factory-tested. Supplies are limited by how many people take us up on the trade-in offer.