Crypton Future Media officially announced that they are developing English version of VOCALOID software Hatsune Miku
. They have promised at New York Anime Festival that they will launch English Miku project when the number of the subscribers of Miku's Facebook account reaches 39,390.
Update 6 dec
They have already done a brief recording.
They are currently checking the pronunciation and etc.
A Demo will be released soon on their facebook page
Source: Hatsune Miku official account on Facebook