The e570 and e550x run Windows Mobile, which means the ROMs may not legally be modified or distributed outside of the official channels, in this case the device manufacturer, Toshiba. If Toshiba doesn't provide the English ROM you desire for your PDA, I am afraid you're out of luck.
I have a Toshiba Genio e550x Japanese PDA, which I believe is a clone of e570. I need the English ROM of e570 desperately for I cannot read Japanes.
Note: This post was edited by forum moderator to remove email address on 03/30/2011 on 8:53 PM PT