Pretty old-school stuff, Tower ops 101, I would have thought, for active aircraft at least. If you're on the runway, you should be on the Tower frequency. Changing to Ground at 40kts on the rollout to be ready with the call isn't a good idea yet I've seen it happen a lot.
The mix gets bigger with Ground vehicles, and tow's - but nonetheless the principle is the same - that the vehicle should be under the control of the Twr controller and not the Ground Controller. Presents a logistical issue as often the RT with ground vehicles is on UHF and the radio will be on the Ground Side.
Some interesting docs ... the first Human Factors and Runway Incursions,
the second is the Australian intro the first poster refers to.
http://www.paris.icao.int/documents_open_meetings/download.php?maincategory=40&subcategory=49&file=runway_mosc ow_20051212_pres4.pdf
http://www.airservicesaustralia.com/PUBLICATIONS/current/sup/a10-h05.pdf