We came across Hakatai when searching online for glass tile, and were impressed with the sheer beauty of their installations. Many tile shops will sell you a wide range of tiles, but Hakatai sells only glass tiles. Their glass tile is found in hotels, spas, homes and murals around the country...
We've traded emails with them and found them prompt and friendly. They have an extensive inventory (which you can view online in their beautiful image gallery), yet are small enough not to be too overwhelming.
Hakatai also has online custom blend and gradient tools to help you create, price, and order your own custom design.
If you're doing glass tiles in your apartment, we recommend contacting them for a price quote and trying them out.
(Edited from this post originally published 06.16.06)