Mobilewares, an Australia based Windows Phone app publisher, are seeking beta testers for two upcoming titles. Word! and Jumble! are both free (ad-supported) word games that feature scoring and highscores, which is becoming the norm these days (look at Minesweeper and Trine's Hangman).
To register your interest and participate in the beta, head on over to WPDownUnder (link below) and fill in the application form - remember to use your Live ID for beta access via the Marketplace.