You can customize yourself on both. However, to avoid web charges, you would have to connect the phone via cable to your PC, and use or make you stuff. Without Vision, even if you go to a freesite, you have to connect to the web and go to the sites website via Vision on the phone. You would may for access charges which is .01 cents/kb. For each page that loads up on the phone, and to download the file...whatever the page sizes and download size...#kb X .01 cents.
OK, I'm planning on buying a phone through Amazon (they've got an $80 rebate offer on it good through tomorrow), but who sells the data cable? I haven't found it anywhere on-line. I've found cables for other Audiovox models, but searches for both "Audiovox 9550" and "Toshiba VM4050" have been futile.
I'm not looking forward to entering 200 phone numbers, and I don't want to upload all my contacts through Sprint's website with 'vision', though I'll have no choice otherwise.