After the results of the RBC meeting in DC, the seating of the MI & FL delegates resulted in Obama leading in the Total Votes Cast when you include both FL and MI numbers.
2008 Democratic Popular Vote
Real Clear Politics Popular Vote Count should be the talking points one should point out everytime Sen Clinton says, I am leading in popular Votes". see here
Popular Vote (w/o FL & MI)
Obama
16,690,219(49.1%)
Clinton
16,229,691(47.7%)
Spread
Obama +460,528
* (Iowa, Nevada, Washington & Maine Have Not Released Popular Vote Totals. RealClearPolitics has estimated the popular vote totals for Senator Obama and Clinton in these four states. RCP uses the WA Caucus results from February 9 in this estimate because the Caucuses on February 9 were the "official" contest recognized by the DNC to determine delegates to the Democratic convention. The estimate from these four Caucus states where there are not official popular vote numbers increases Senator Obama’s popular vote margin by 110,224. This number would be about 50,000 less if the Washington primary results from February 19th were used instead of the Washington Caucus results.)
** (Senator Obama was not on the Michigan Ballot and thus received zero votes. Uncommitted was on the ballot and received 238,168 votes as compared to 328,309 for Senator Clinton.)