Fantastic game so far, I have posted my initial impressions on other forums but so far I have no regrets for making this a Day 1 purchase and am glad to finally play a great 4x space game without wincing at what they have done (MOO3, SE5, etc.)
Allowing players to rename capital ships and planets is great and certainly adds to the immersion factor. However, I would also like to see us have the ability to name fleets (and please forgive me if you can do this already, but I tried using the naming button when the fleet was selected and nothing would work).
Reasons:
(1) Management Aid - Do to the scope of the game, the use of fleets is encouraged (over control groups) since the player's AI will utilize "intelligent" behavior to reduce micro-management. However, aside from clicking them on the UI tree or assigning the leaders a CTRL + #, there is no way to quickly figure out where each one is/doing. Instead of trying to memorize which multi-color fleet icon is doing what and where, a short name of "SE Sector Def" would tell me the general location and purpose of each fleet along with the already present ability of quickly checking the status of the ships in the UI tree.
(2) Immersion Factor - increases by allowing us to input our favorite nomenclature.
Implementation:
The UI for naming is already present and the name could be displayed similar to how planet names are displayed next to them in the UI tree on the left side.