Definitely looking into the nexus 7 but waiting to see if there is going to be an iPad mini event.
I went to see a Nexus 7 this weekend and was blown away by it. The screen, fluidity of the UI, easy of use, quality feel, etc was all really really nice. It felt great in the hand, easy to use and see, etc. 7" tablet is the ideal compromise between the small iPhone screen and large ipad for portability.
What I liked most, GPS, off line, no wifi GPS. Why Apple hasn't put that in the ipad wifi yet is beyond me...it is one of the things that is swaying me toward the Nexus.
I too am hoping the iPad mini comes out and the specs/price are inline, but just in case I reserved a Nexus 7 (they were just released in Japan this week, so there is a one to three week wait). Depending on what Apple announces I will either pick up my Nexus 7 or cancel and get the iPad mini.
But I will say, Jellybean is slick and the Nexus 7 is an example of near perfect execution of the OS in a a tablet that size. If it had 32 gb of storage I would say it was perfect. Apple needs to come up big IMHO to beat it.
Oh and I hear the Kindle Fire HD has an even nicer screen, but Amazon is killing it with its restricted UI and access to apps IMHO.