Update

Since i have been away for quite a long time, i'll try to list what i have been researching and finding about english visual novel..

1)Go! Go! Nippon! ~My First Trip to Japan~

Created by Overdrive and released by MangaGamer
Read more about the game here.. http://vndb.org/v7316

2)Amaranto

Read more about the game here.. http://vndb.org/v1987
The tranlation for this game is in progress, and a partial patch has already been released at the group website.. website

3)Rin ga Utau, Mirai no Neiro

Second game of Hatsune Miku.. this one we got Rin!! ~_~
Read more about the game here.. http://vndb.org/v2505
for the english patch, get it here.. http://zoom909.blogspot.com/
im still downloading the game, will upload it soon..

4)Steins;Gate

Yes, steins gate game translation is in progress.. read more about the game here http://vndb.org/v2002
drop by at their website and give some encouragement.. website

5)Galaxy Angel Eternal Lovers

Second game of the Galaxy Angel series has been successfully translated.. read more about the game here.. http://vndb.org/v862
Get the english patch here.. website

6)Muv-Luv Alternative

The translation is finish.. read more about the game here.. http://vndb.org/v92
Get the english patch here.. website

7)Katahane

translation finish.. read the more about the game here.. http://vndb.org/v22
Get the english patch here.. website

I guess thats it for now.. actually there are some Sono Hanabira games that are finish translating, do google for it.. ^_^