Earlier this morning, Microsoft demonstrated how current Win32 apps (aka 'Classic Windows apps') can be ported as Universal Windows Apps that can run on various devices. Even better, these apps can be bought and downloaded through the store, and they avoid all the pitfalls of traditional Win32 apps, including bloated registries and poor uninstall abilities.
Microsoft is also now going to let those apps (and games) be larger than 150 GB in the universal Windows Store as AppX files.
Full story from the WindowsCentral blog...