hey guys.. i plan go get this phone.. what are the cons of this phone? and does this phone support garmin?

talking about GPS..can someone help me with the following question tat i had with GPS pls..

Q1: if i use A-gps, telco charge me rite?...how baru can avoid being charged using gps?..

Q2: can i have the option of downloading the maps into my phone/memory card,and then whenever i wanna serach for direction, i serach it in the phone memory without connecting to any internet/data connection?..

q3: for those dedicated gps, do they get charged too when they use it to navigate?..

i read some of the dedicated gps thread here in LYn and still cant reli understand.