Summary: I'll keep this short. First, the i600 has a great display. It's also well built, with a really decent set of specs and a good keypad. There's even an extended battery pack that comes with this unit! And it benefits from the excellent Sprint 1xRTT data network. But the i600 suffers from the restrictions brought about by using the operating system that is built into it (Windows Mobile Smartphone).
Summary: Good concept, but so many problems. For example - if you are on a call, it is nearly impossible to pick up another or to put the person you are talking to on hold; when you open the shell to answer a call, if you so much as touch the buttons on the side of the phone (and it is nearly impossible not to), you won't be able to pick up the call.
Summary: I BUY SAMSUNG I600 AND COSTED ME 250 EURO... FIRST I NOTED AUDIO RECEPCTION QUALITY WAS BIT WORSE THAN MY OLD MODEL, BUT THAT EVEN HAPPENED TO ME WHEN MOVED FROM MY OLDE ERICCSON BRICK TO NOKIA 5110... SO I HAPPILY KEEP WITH IT, BUT HAS I STARTED USE IT PEOPLE TALKING WITH ME ON PHONE ARGUED ME THAT THEY LISTENED TO ME WORSE THAN BEFORE, ALSO I REALICED THAT IT GOT WORST NET RECEPTION IT WAS HARDER TO FIND GOOD RECEPTION PLACES...
Pros: Qwerty, form, pack
Cons: AUDIO QUILITY IS S***, BATTERY GOES DOWN QUICK