I have just tested Sony j70 and found that it was not up to the mark the recording function is very sensitive lots of hiss gets recorded along with the sound u record navigation system is very bad it looks like an old transistor and the time given for recording is very less i.e of only 3 seconds.
well it has a mobile explorer and a wap features. and the sound of the tones are good but the volume is very less u cant hear it when ur in market place. I think nokia 3310 is the best as compared to j70