I have build and run it.
The Qtopia 2.2 for Sharp ROM on SL-C1000.
1. The png-problem was: while I don't have png/uuic developer libraries on host pc.
2. In the qtopia directory exists "utils", and one of them qdwag (smth-like this) should be build for host system, but if you have the -I and -L switch in the qpe section, then it cannot link libraries (while it try to link ARM libraries for X86 build). The Makefile.target should be modified by hand (i.e. remove -I and -L options for RAM), then source setQpeEnv, cd to it and compile, then run "make" for complete build again.
3. In the QtPalmtop/etc/default/qpe.conf, we need to add new section [Startup], and add the new key: FirstUse=1, and before start delete /etc/pointercal (ths calibration will not work with the /etc/pointercal from previous qtopia.
4. For the run, you MUST add "helvetica" fonts in the QtPalmtop/lib/fonts directory. Without this, the qtopia will start, but you see nothing except splash screen.