there is a project called nebula at eclipse for swt. they are working on allowing tab and arrow navigation for jface. i was able to swap out some code from the jface bug tracker i've modified from jackwind li's swt book with code from nebula project. you need 2 jars downloaded from nebula.
so tabbing is possible in swt and it looks as if it will only get better.
i can with f2 key, tab, and arrows navigate and edit a grid without ever clicking the mouse (well maybe to select the first cell when starting (not sure).
exactly what i needed. hope this helps some people. it is new code and they are continuing to improve it.