We know they're writing it using modular methodology. If they're using C++ or other multi-platform development product, then it has a much better chance of a lot of cross platform support. Most companies write to the current installed base plus 1 (to allow for the current base to upgrade during development time). A version that is written for Windows 98 will not be able to take advantage of a lot of memory compared to Win 2000 NT or Win XP. If you figure that at the time of release the market base will be mostly XP, you write for XP. This isn't the issue with Windoze this time since there's no rumor of a new release, but it may be the issue for Mac. All pure speculation. At the price and the proposed feature set, it's the best deal I've ever seen on software. You can't beat free. Speaking of free, this is the smartest move they could have done. In one stroke they completly avoid every one of the problems CL had. Even if it's pure crap, who can complain? No security crap or overhead, no b*tching because this part doesn't work and we paid good money for the whole product. No sales less than a month after release making those who preordered feel like idiots. No marketing campaign in all the magazines. No "bundled offers" to try to sell it. They'll make their money on the add-on components and by insuring that their content still has a home if another company bites the dust.