The only difference there could be is the model, as said above. The 8330 and 8310 come in Red and Titanium I believe (8320 seems to come in different colours...) but as long as the model number is the same the colour is just a colour! I find the red looks really manly and the titanium looks really corporate...I had a TI but switched the faceplate out for a purple BeckyMae one!
Haha I wasn't tryn to start nething either, jus sayin I thought red was more girlie than titanium... Althought came close to getn titanium because of a head injury 2 yrs ago, I have titanium plates ...
Pooh luvs Jamrock
Other than color the only difference is the buttons. The red curve button's are black and the light shows up through the letter. The letter and number combined buttons - top half numbers are black on white button and bottom half is the same as all the other letters - black with white blacklit letters. I love the red color, but the buttons (are the opposite on the titanium) are brighter.