The Install Aide API is being used for the actual photo transfer, so my code isn't an issue. I've tried switching this to direct VFS API code, but there wasn't a very noticeable difference in performance. If I attempt to transfer the photos directly through a USB card reader, the performance is substantially faster, but from a consumer use standpoint it's much easier if all the user has to do is HotSync.
Using HotSync to transfer items to a card can be very slow, due to issues with the way the HotSync protocol is implemented. When Real tackled this problem for MP3 files for RealPlayer on Palm OS, they made their own file transfer app that ran over USB, talking to the RealPlayer application on the device, and got a major speedup. It's also possible to use a tool like Softick Card Export to do this generically.
-- Ben Combee, DTS technical lead, PalmSource, Inc. Read "Combee on Palm OS" at http://palmos.combee.net/
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