You can actually use a few different USB ethernet adapters that exist too, to enable you to connect 10/100 Base-T cat5 cable to the Wii. Offhand I don't know which ones are supported. Check around the net.
Be careful though as I read the Kinamax NT-USB20 is no longer compatible (they probably changed chipset or IDs) and it's possible that other adapters listed as "working" no longer work (for similar reasons).
Personallly I'm using the Nintendo adapter that I got directly from them...
I agree that they fixed some issues with it but at the very same time they added more annoyances like the new way to scroll. What is up with that! I think they need to make it so you can scroll with the D-pad as well. this new way or scrolling is quite frustrating!. Oh not to mention those annoying sound effects! wish you could turn them off. i dont need to hear click click a million times!
Text looks fine... and with the simple touch of the +/- buttons you can zoom in and out quickly for things you just can't make out.
Other than the scrolling issues my only other beef is that many of the plug-ins don't work. I have a subscription to curltv.com that won't work and last night purchased an AHL webcast on PPV and wasn't able to view it via the Wii. Would be great to be able to watch these on a TV versus computer screen (appreciating they may look a bit worse on TV).