[cookiecaper]

IMO, most companies can't engage in anti-competitive behavior independently. You need a special status as a monopoly or a part of a cartel. For normal companies, normal behavior is "anti-competitive" because the point of business is to beat your competitors.

If we assign MS the role of a "typical business" instead of a monopoly (they have may been a monopoly 20 years ago, but it's hard to make that case now), Microsoft is under no ethical obligation a) to provide a client for other operating systems; or b) to ensure that performance parity exists between every client on every platform.

While it may not be super polite to release clients for other platforms and then subtly cripple them in order to drive users back to Windows, there's nothing below-the-belt about it IMO.

[sqeaky]

For desktop PCs they still have greater than 90% marketshare. In businesses its closer to 99% I think the title is "Monopoly" is appropriate.