Thanks NxtChg, the format I wrote
"Nxxxx xxxx X xxxx xxxxT" or even just "Nxxx xxxx xxxx xxxx"
instead of NXTxx xxxxx xxxxx xxxxx

this addresses two of the "arguments against" branding

Arguments against:

    Longer addresses, usability suffers.
->  Harder to find address visually, because all 3 first letters are the same.
->  Needless duplication in case of:

Phone: 123-4122-312
Email: john@doe.com
Skype: john_doe
BTC: 1dff943fjfj90234jfidsjf98430jffj03
NXT: NXT-JOHN-2342-S4FW4-DFSESE

Even if the branding is more subtle I think it still functions.

I also prefer removing confusing letters/numbers rather than mapping I=1 etc. to the same code, "For rare cases where you need to actually type in the address".  Maybe I'm wrong but I thought the point of using shortened "visible ID" addresses in NXT is so people can type an address.  Mapping I=1 to the same code makes people nervous because they don't know it will do that.  I think using unambiguous alphabet is better.  What is the value in making it easy for people create a vanity address that starts with a word,  Why not just register an alias?