Honestly, I do not have any idea about this railblocks / nano, can some one educate me about this projects, what is so special about it and why they rebrand it? I think Raiblocks has more appeal.
Info about the rebrand:
The Core Team wanted a name that represented the simplicity and speed of the project, and Nano does just that. The new logo uses several nodes, playing on the block-lattice design of the network, that connect to form an N. All social media accounts will be updated to reflect the name and logo changes.
Please check the link for more info about upcoming changes and projects too ( desktop wallet/IOS wallet). It's going to be a good 2018 for the Nano investors
https://hackernoon.com/nano-rebrand-announcement-9101528a7b76