For the most part, all Wifi "b" devices work everywhere with everything since this is what was fielded first.
You don't see "Hotspot for people who own Linksys WiFi cards" but you will see "WiFI Hotspot..."
I think this explains that issue well enough.
I am going to go wirless in the future with up to three or four computers. I am a tightwad and look for sales and rebates so as long as I purchase all b or all g type components of different brands will they work or should I stay with one brand only.