The well known limitations of public transit apply mainly to conventional public transit. That's all we get because of monopoly provisions of local law or because of the unimaginativeness of employers -- who, as Don Shoup, has taught us would save bundles providing less employee parking.
Neither seems to have stopped (who else?) Google, Intel and Oracle from providing shuttles by which employees can get to and from work. A recent NY Times piece tells the story.
Give these employees internet access on the bus and two wonderful things happen: they like the ride and they get to work working.
Just imagine, transit that's attractive and without huge public subsidies. (Hat tip to David Yarden.)