You can go back to the twm environment by simply doing
ipaq# /etc/init.d/x_bb_demo stop
ipaq# /etc/init.d/x_twm_demo start
I haven't been able to find a blackbox focus policy that lets me use xscribble. If you find a way, please let me know.
Here are the cramfs-usr and init-ramdisk, both based on v0.12's version 2-37 from handhelds.org.
cramfs-usr-2-37-pm1
init-ramdisk-2-37-pm1.gz
and if you want just the new files:
Also here is the Xvnc (VNC server) binary for iPAQ: Xvnc
Here's what it looks like. Blackbox contains a number of menu-selectable styles ("themes"), so you can choose another after startup. (Of course, on the physical screen the colors are not so saturated as on a CRT and they are quantized to 4 bits per channel.) The center window contains a view of a remote desktop.
i386 mkcramfs binary
iPAQ binary for Larry McVoy's mhz CPU-clock-rate estimator. From the lmbench distribution.
There's a patch and screenshots for a VNC client that filters a 640x480 desktop down to 320x240 here.