Hi xxjatlandxx --
Agreed w/ what Stacey said - the call from Wharton unfortunately doesn't mean much. (The fact she was complimenting your GMAT score tells us it was a marketing call, right?) Admission to an EMBA is typically much less competitive than getting into a F/T program, at Wharton or anywhere, and those schools are actively seeking more students since some of them are having trouble filling their class. It sounds like your profile would be a good fit for Wharton EMBA - but that's a totally different story than HBS. You're well past the average age for HBS; they tend to prefer younger students, typically around 27-ish. Sure, they admit people along the spectrum every year, but the odds are not in your favor. To give up the very good Chicago program that you're currently in to pursue an HBS dream could leave you in a tough situation in the end.
Stacey's got some good advice - look into why you pursued the Booth P/T program in the first place and see if those reasons are sound. If not, it might be worth trying for the gold, but the call from Wharton really doesn't indicate anything about whether it'll play out, either at Wharton EMBA or elsewhere.
EssaySnark