I was in my local Wal-Mart the other day and I noticed that they have their MP3 case set up with some demo Zunes. The Zune goes on sale in Canada tomorrow June 13th. Unfortunately the Zune marketplace (store) will not yet be available but that is soon. I will be testing a Canadian installation of the Zune software tomorrow. As of right now I have my accounts set up as US accounts.
I currently have 2 Zunes, both an 80 GB and an 8 GB. I have written a review of the 80GB on this blog here. Version 2.5 of the Zune software and the firmware have fixed a few of the little irritants I had (especially separating Video and Audio podcasts) but have also added one more irritant and that when playing a podcast if you have play one podcast episode and also have earlier unlistened to (or unwatched ones) it will automatically play those.
All in all, I still really like my Zunes and will keep them. There has been a confirmation that the devices will soon add Audible audio book support which will make an excellent device even better!
If you are looking to an alternative to an iPod, I highly recommend the Zunes.