I've got a Rev.D 15" PB and I use it to connect to my 802.11G WPA protected network. The WAP is in the back of my condo on the second floor and I typically have the PB in the living room at the front of the first floor. On Panther the signal strength showed 1 to 2 of the 4 bars most of the time. Since I've upgraded to Tiger, it routinely shows 3 of the 4 bars from the same position. Anyone else noticed improved 802.11 performance under Tiger?