Not the case. Apple releases several betas of new OSes, both reference and point release, to developers weeks or months in advance. It's rare for them *not* to have an OS in beta, two if a reference release is a few months away and they're still working on a point release. Sure not every developer gets these betas, but enough do that any issues will be published where the others can find out about them and fix their apps in time. If they don't, unless they're just a small shop or open-source project which doesn't have enough time in which case I'm very forgiving, it's their own silly fault for not paying attention. iSlayer can't update iStat menus in time for 10.6? That's OK, it's a small operation and we always knew they'd have a lot to do in that area of the OS. Adium has to revert to a slightly older version for the first few days of 10.5 being available? Not a big deal. HP only supplies printer drivers for some of their recent models until a few weeks after release? Inexcusable.