You may have noticed Volume Boost in the Recent Packages list in Installer (from the iClarified source), it is a Background change that edits a file on your iPhone that un-restricts the volume limits placed on your iPhone speaker (ie. there is no application to see on your SpringBoard). I put off writing about it because I wanted to do a little testing to be sure of my findings. I did notice a little bit of a boost, but nothing huge. I didn’t notice the change as much in the ringers as I did notice a boost in the little sounds like receiving a SMS, and Key Clicks, and the Lock and Unlock noises. Have you tried this out? Did you notice a bigger difference than me? Tell us about it!