Bad Apple

Apple seems to have screwed up their wireless networking from laptops (especially on battery power) on recent software releases, starting with 10.5.8 but continuing with snow leopard. Frequent "no internet" faults. Really frustrating. Lots of complaints out there but no action. And I notice apple support page has the classic dumbass bad units problem:

**** £0.05p per minute when dialled from a landline within the UK. Call charges may vary when calling from a mobile phone.

(p = pence = 1/100th of 1 £)