At this time the 64-bit driver is available from the saintly folks at Aceeca for free. It works great with my 755p and probably will work with other Treo's and relatives as well (I'm just a messenger). As soon as I get some money (yeah, the economy just keeps on giving), I'm gonna send them a thank-you check out of my unemployment. That's how much I appreciate what these magnificent entrepreneurs have done. If the banks, insurance companies, and Wall Street had the same attitude, we wouldn't be in the mess we are in.﻿﻿ I am running a Treo 755p (Sprint) Office 2010 32-bit (I don't use huge files) and Windows 7 64-bit. Lo and behold after much surfing and fretting, switching machines and reconfiguring, bluetoothing and blue-swearing, I found a 64-bit USB driver that works with PalmDesktopWin62 on a Treo 755p. I installed the Palm software; plugged the phone's sync cable into the PC USB port; and manually added the new USB driver. Works like a champ.