hi al the members!!! im a new person here n im so love to talk about andoir. here i need to ask few question and i hope iu guys can hel me...pliz... im using sony walkman w8 ( i think its got not many different with x8) ... 1, how to move my app from int. memory to sd card? cause it make my phone always jammed as i install smthing new... currently using android 2.1 .. 2, can i upgrade my android, if can, can anybuddy tell me how so tht i cAN upgrade it by myself at home? 3 can somebuddy tell me what is ROOt ? i thinks many important apps need somekind of root , but i dont know what is it, i trying to read it in wiki but still not undertstand... PLEAZE , HOPE THERE IS SOMEONE CAN HELP ME HERE..