Broken Phone!!!

Soooo we were at my Grandpa's house for his & my cousins birthdays for a party. My Step Mom wanted to hold Toby and he was being a tad cranky so I handed him my phone to make him happy...no big deal right? WRONG! Not sure what he did to it but it keeps cycling over and over saying I need to Sync it to my computer, no biggie I will just do that when I get home, annoyed that I couldn't use my phone but figured once I was home everything would be back to normal...so I thought! We brought it home and hooked it up to my computer like it kept asking and well it went down from hill from there! Phone is totaly freaking out to the point I did a hard reset 3 times and still does the same thing...I took it in the AT&T store and they said I had to mail it in, thankfully I was able to get a cheap nokia for like 30 bucks till I get the new one which will take a few days to get. Note to self....NEVER let the baby touch your phone!!!!!!!