You can still use the free browser version with a free account - is not the latest and greatest version 4, but it's the same one everyone was mega excited about just several months ago
I use it for tech support- just the other day I wanted to run a python script on my android phone. From zero to working script in an hour is a huge benefit to me, it would literally have taken me days to find out what to install, how to install it, how to generate the script, how to write out the results etc.