I don't have the Sidekick 3 but heres a link to a great phone website that has information and reviews about all the cell phones out there. Heres a link to the Sidekick 3 reviews: http://www.phonescoop.com/phones/user_reviews.php?phone=964
i have a sk3. its alright, but it damages easily if youre clumsy. it doesnt have picture messaging like the lx does. it has aim,yahoo, msn, email, web, and texting but its like 20 bucks a month extra. the internet is nice cause its faster then most other phones..and its easy to use to cheat in class