COmpletely Wireless? You'll need an Intel Centrino-Style Satalite Laptop.
If you want wireless completely in your house - you can just get a PCMIA Wireless Card and a Computer with a PCI Wireless Card connected to the Internet, and a Hub with a reasonable sized antenia to send the signal throughout your house. You could get a Wireless Router, which would do the same job as the Computer Connected to the Internet - but you'd still need a Hub and the Antenia to tranmit however far you want to go.
As for Hotspots? Maybe they're an American thing but even if they are they'll be in Big Cities in Park Areas, and they'll be dreadfully expensive.
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.