If you thought Telstra's 21Mbps HSPA speeds were awesome, you'll be stoked to know that according to Gizmag, Ericsson has just doubled it, demoing 41.5Mbps recently in Stockholm, Sweden.
The best part of the entire demo though? It only requires a software update to implement, effectively doubling the speed of the world's fastest network painlessly, should Telstra decide to jump on board.
Of course, you won't actually get speeds of 42Mbps on your device - like Telstra's 21Mbps speeds, that figure is purely theoretical. Still, it's going to be better than your stock standard ADSL1 service, and that's impressive.