Will Text Messages Be the Deciding Factor in an Obama Win?

The latest poll I heard this morning puts Obama up by more than 10 points in CA.  That doesn't look good for the Clintons.

This piece in the WSJ this morning shows how the Obama camp is using text messaging to instruct people on where/how to vote in the today's primaries/caucuses.   Will leveraging the text message medium give Barack the 8 point victory I expect if McCain is the nominee on the Republican side?  It will certainly contribute.