1.35GB for me. I'm pretty sure Other consists of save data for your apps as well as album artwork. I have 30GB of audio on my phone and every song has album artwork saved from iTunes, so that is a normal size for me.
I have around 1.64 gbs of "Other" I have no clue what it could be. I've cleared my cache and cookies as well as my history. I did a restore on my 16GB iPhone 4S today. I had 2.4 before the restore. Anyone know what could be in that 1.64 of other?