Hi,
Apparently the latest GTK version (2.24.8) fixes lots of Windows issues, including tablet support (details on http://mail.gnome.org/archives/gtk-devel-list/2011-November/msg00026.html). Just tested with a local modified version of Inkscape, based on revision 10922, and I can confirm at least a bug and a regression (#786667 "Color drag and drop broken" and #707255 "Layer dialog - symbols disappear when mouse hover over") are gone. More tests planned later with a Wacom Bamboo tablet.
BTW, the current devlibs introduced a regression in the trunk and 0.48.2 version (see #173116 Gtk::PixbufError exception not caught in Windows), and need to be recompiled to to prevent Inkscape from crashing on Windows when opening an invalid image.
Krzysztof, would you be willing to update and recompile the devlibs so that more users can test before we release 0.48.3?
Regards, -- Nicolas