Don't let that stop you. Every Ereader owner should have Calibre on their computer with the appropriate plug ins to allow them to de-DRM any books they have purchased legally. I have a Sony Reader but I'm not going to let that stop me from taking advantage of the daily Kindle Deals.
Thanks, I have Calibre but if I can get it for my Nook from B&N for the same price, I dont bother messing with it. Most of these daily deals are publisher driven and thus not exclusive to Amazon, because of this I really havent had much need for Calibre lately.