The geisview tool, when attached to a window, used to report gestures from an Apple Magic Trackpad. Current versions of the tool in Raring report no gestures. In addition, when run with GEIS_DEBUG=3, the following suspicious diagnostics appear.
GEIS(error)-geis_filter_add_term:495 invalid attr name "t" for facility
GEIS(error)-geis_filter_add_term:495 invalid attr name "w" for facility
GEIS(debug)-geis_backend_token_activate:63 called
GEIS(debug)-_geis_grail_activate_with_filters:2312 filter 0x2ba63c0 'ðnº' matches ALL devices
GEIS(debug)-_geis_grail_filter_gestures:2056 mask=0x0000001f start=1 min=1 max=5
GEIS(debug)-_geis_grail_activate_for_device_region:2185 subscription='p' filter='ðnº' device=4336 'SynPS/2 Synaptics TouchPad' window=0x00000259 ugsub=0x2ac4390
GEIS(error)-geis_grail_window_grab_store_grab:153 error 1 returned from XIGrabTouchBegin()
GEIS(error)-_geis_grail_activate_for_device_region:2197 failed to grab input on window 0x00000259
creating subscription
Fix committed into lp:geis at revision 311, scheduled for release in geis, milestone 2.2.16