The only way that would happen is if Adobe went crying to the FTC... which they would, which is why Apple offers first-class PDF support in the OS and Microsoft doesn't.
An Adobe acquisition would render this a moot point. Full .PDF support would show up in Windows very quickly, which wouldn't be a bad thing IMO.
An Adobe acquisition would render this a moot point. Full .PDF support would show up in Windows very quickly, which wouldn't be a bad thing IMO.