Moving Marketpress from plugins to mu-plugins

Hi,

So I just discovered the mu-plugins directory. So far I havent had problems with MarketPress being in my plugins folder, and showing up for signups (I am running multisite) But I was wondering basically two things, Is the 'proper' way to run a Marketpress site with multisite users to put it in the mu-plugins folder?
and If I move marketpress from plugins to mu-plugins is it going to mess up the products i have set up?

Thanks!
Lisa