I highly recommend the Iphone 4. As a business owner, I have six email accounts set up on my phone. I am constantly building backlinks, hubbing (as I am now on my Iphone), etc. I had an Iphone 3 and almost did not get the 4. The 4 is so much faster and reliable. It is a true mini computer and so easy to use and navigate. It is now available on Verizon and ATT.