Don't have my phone, yet, but I'm planning to stay on stock for at least a little while. Not sure, though, because I've become VERY accustomed to Go Launcher, on my Thunderbolt. I'm guessing the answer is no, but by any chance, does the stock launcher on the Nexus allow you to change icons for apps? That's the one thing that'd probably make me start using another launcher, because I like making "themes" for my phone, which includes the app icons.