Ethernet cable version of imp

Hello i know your imp only works with wireless but in some cases it would be nice to work with ethernet cable instead.
I forces me to buy a wireless router for 2 locations.

Is there a good reason you only have wireless imp and not a cable connected imp?
Do i have an alternative to wireless?

Regards
António

There is a discussion about this near the bottom the first page…http://forums.electricimp.com/discussion/2805/ethernet-imp#Item_3

what a cheap small beauty to cable my imp

http://www.ebay.com/itm/281397121728