I believe I found the source, see here. Based on some of the posts that I read in that thread, this isn't going to do anything. The mod came from the Epic, and apparently only works on T-Mobile (USA) or Bell (Canada) and does nothing for anyone else. If you experience an increase in data speed, it's likely just a placebo. Will installing this hurt? Probably not, but not installing it doesn't look like it's going to do anything either.
EDIT: First post of that thread is almost verbatim what is in the first post here. Pages 11-13 seem to have most of the useful info on this working/not working.
Yeah this is an age old hack that honestly I've never seen help any female user. I went ahead and added it to superclean because people form their opinions regardless what facts show.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?