I discovered FireMath today, an addon for Firefox that makes editing MathML much, much easier. Give it a spin. I just wish more browsers than Firefox supported MathML out of the box.
In an earlier post I detailed how to get your Nintendo DS connected to a router with dd-wrt. One problem I had back then was that I could only make it work in 802.11b-only mode. The solution is to go to your dd-wrt page, select ‘Wireless’, then select ‘Advanced Settings’ and set ‘Basic Rate’ from ‘Default’ to ’1-2 Mbps’. Now you can set ‘Wireless Network Mode’ under ‘Basic Settings’ to ‘Mixed’ instead of just ‘B-only’.