I have a thread on my astronomy-optimized Nexus 7 somewhere on this site. I have red navigation bar buttons & a red keyboard to use with Sky Safari. I run it on my 8gb N7.
I've done some southern sky astronomy in SA, NSW, & Peru.
I'm not the lowest of the low, but I am the slowest of the slow (49.6 mpg over 38k miles in Scion xB)