(The author is a mac user).
This article made me laugh.  Microsoft is "re-introducing" visual basic into their next version of office for the mac, finally having listened to their users.  IMO, they did no such thing.
They were in a pretty vulnerable position.  XP, though popular, was an aging and increasingly insecure platform.  They were under tremendous pressure to release Vista, an OS that (if my colleagues are to believe) was a nightmare to use.  MSFT knew it was buggy when they released it.
At the same time, the Mac OS gets rave reviews for reliability and security and with the intel macs, speed as well.  The only thing really preventing wholesale changeovers are compatibility issues, and most enterprises run Office (the other MSFT monopoly).  However, in enterprises, you need standardized forms and macros, which visual basic provided.  (I'm a novice with Excel, but I use Macros in word all the time).   
By refusing to add visual basic support, the program becomes useless in mid to large enterprises.  Voila, market preserved, and temptation to switch to Mac platform abates.  The functionality will get "re-added" four years down the line, after the kinks in Vista have been worked out.  
I haven't bought into the cult of mac (publications like macworld are written by the Cupertino sect of the Branch Davidians), but they are damn good machines to use once you get used to them.  MSFT knows that. There's no way they would take any chance of losing their enterprise markets in either Office or the windows operating system.  Just one (non-expert) opinion.