One major weakness in using my Treo 650 right now is the lack of ability to view PDF files that are emailed to me when I am on the road. DataViz is working on a solution that is supposed to be out before the end of the year. In the meantime, an enterprising developer has been working on a solution and PalmPDF is now in beta stage. This is a free program and actually works pretty well. I tested a few PDF files so far and only one would not open due to some unique font issues. I need to try emailing a file to myself to see how that part works, but it is great to see someone tackle this problem. Give it a try and provide feedback to Jonas on the application.