It doesn't help much if only the OS is touch-ready, but all the apps aren't, and if it's only the OS, then it will just annoy the PC users. This is exactly my

It doesn't help much if only the OS is touch-ready, but all the apps aren't, and if it's only the OS, then it will just annoy the PC users. This is exactly my worry - an SDK for what exactly? I have been in favor of having one standard API/ABI for GUI applications in Linux for years now. Given the fragmentation in Linux, the only road to succes is if one vendor (e.g. Canonical) pushes it. But since the smartphone and tablet revolution, Linux has two problems: there is no standard for PC nor touch interfaces.