Any appearance of Word Riot Deluxe pages on Pogo’s public site was a total goof. Apparently, the game wasn’t due out until next Tuesday Monday*.
Pogo is still testing it in small groups (there was a group of 14 testing Classic mode games earlier today and a slightly smaller group playing in Rally mode). This explains why you cannot download the game from the Pogo site yet. Until further notice, it’s pretty safe to assume Word Riot will be released next Tuesday (4/29) Monday (4/28)*.
Whatever you do, DO NOT try to purchase the game yet — never mind the fact that you should always try before you buy, Oberon Media isn’t ready to distribute your license key(s) (although they’ll be happy to charge you numerous times for the transaction). Don’t say we didn’t warn you!
* Update: According to this page, Word Riot Deluxe will be available on Monday, April 28th. At that time you will be able to download and play the free demo (and enter into a sweepstakes for $400).