A (very minor) bug report for Cacko 3k Beta 1: in the Settings tab, the "Receive Data" application's icon legend is spelled "Recieve Data"... Not a big deal, but something that is easily fixed, so I thought I'd let you know!
Otherwise, I'm pleased to report that the Qtopia development environment "dev_img-1.6" works great on the Cacko3kb1. I've been playing with it for a few hours, and everything works well (at least as good as with the Sharp stock ROM).
I still haven't been able to make Kismet actually work with my Planex WiFi card (though the card works perfectly to connect to my home network, or various WiFi networks I could (blindly) find... Certainly something to do with finding the appropriate drivers config in Kismet, I'll try to spend some more time on this later...
One last thing: I'm still playing every now and then with my GSM/GPRS EagleTec CompactFlash card, and with tetsu's V18a kernel and modules it still shows the same problem: inserting it will cause the microdrive (socket 1) to go to suspend mode along with socket 0. The card is correctly detected as "Serial or modem", though, and the crash can be avoided by typing "cardctl resume 1" before doing anything else upon card insertion... Are there any significant changes between the Sharp ROM and the Cacko ROM when it comes to CF slot handling? I don't have the /etc/pcmcia/* files from the Sharp ROM at hand to compare with what I have on the Cacko ROM right now.