I was reading tonight’s posting by Pat Fox on the Mac Mojo blog and saw Microsoft saying that they’re the exclusive sponsor of IDG’s Macworld Blast! party. However, just on Wednesday evening, I distinctly remember XtremeMac was also a sponsor of that party right alongside Microsoft. I emailed XtremeMac and Microsoft and I’ll see what can be found out. You can say it’s not my business but I’m just a little curious.