Friendly, geometric business name designed for a tech-savvy business.
The name "tacube" has only six letters and only two syllables. Two-syllable names are exceptionally rare and very valued. Established brands using two syllable names include Pepsi, Pocket and Twitter.
Tacube.com is a dot com domain. Dot com is the most prestigious domain extension. Once secured, a dot com all but guarantees no-one else can outrank you for your own name in the long run.