so i have an ipod with ios 4 and it has had only 2 bars of wifi now. in ios 3 it was full always. If i place it on the table, i have 2 bars, if i have a cover on i have 2 bars. If i hold it in my hand without a cover (silicon gel cover for the back and sides, i have no skin contact on the metal on the back) it drops to 1 bars. Hm... what do you think?