In the original Post 9/11 GI Bill, National Guard troops serving at home were left out. An amendment in S.3447 changes that and finally provides the GI Bill benefit to National Guard.
According to an article from WDUQ news:
"members who are called up for border security, natural disaster or other domestic duties can receive the G.I. Bill benefits. Altmire says by closing the loophole approximately 130,000 additional National Guardsmen qualify for the Post-9/11 G.I. Bill’s benefits."
This is great for all those who serve in the National Guard - the President will sign the bill by the end of the year and it will go into effect in August 2011.