For those that already have the fast HP39gII, there is a connectivity kit available. You will find it in the corresponding product page. It allows you to connect your machine to the Windows-based computer and transfer applets and matrices.
But it also comes with a boon: it enclose the latest published ROM, dated September 4th. You can use it to upgrade the machine. It solves many of the bugs that came with the firmware issued in July.
You can develop the programs you need with the convenience of a laptop computer, using a big keyboard, and port them to your unit for exams or daily work. Neat!