If you've been waiting oh-so-patiently for HP's $49.99 WiFi Mobile Mouse to ship, take heart -- the aforesaid critter is now ready to free up one more valuable USB port at your workstation. As mentioned before, this ain't your mum's wireless mouse, as it makes use of WiFi technology (you know, instead of the tried-and-true Bluetooth) similar to that found in Logitech's Unifying Receiver. In other words, this bad boy doesn't require anything other than itself to connect. H