Umm… the launching of applications isn’t hidden? Start screen pops up, you can configure what apps you want there. Put the ones you use up, Bob’s your uncle.
If you’re looking for something specific, press Winkey and start typing… just like Windows 7.
If you don’t like the whole Start screen when you fire up Windows, you can press the Winkey to jump to the desktop. What would you do next though – launch an application? So you need to go back to the Start screen I guess….?
Like I say – I did NOT like Win 8 when I started using it, but some of the UI changes are actually really handy when you get used to them 🙂