[edit: our posts crossed. Let me read matze79's reply]
The reason for 2400 baud was for use of Logitech drivers. There are likely people who want to use the adapter on more than just Win3x and Win9x. I'd like to use the adapter with Win NT 3.51, NT4, and possibly W2K. Will the Intellipoint drivers work with these OS's? It could be that Logitech already has 2400 baud drivers for these OSes - hence my interest in 2400 baud adaptions.
I noticed that while behind the KVM, the original Matze79 firmware 1.0 drivers at 1200 baud felt quite a bit faster in DOS compared to the firmware 1.1 drivers at 1200 baud. Do you know why this is? So it seems to me that perhaps the original firmware 1.0 could be tweaked for 2400 baud? And maybe that is sufficient for behind the KVM?
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