Build a simple word game (personal use)

I want to hire a programmer to make a VERY simple game for private use. This is not for commercial purposes, it's a present for my wife! The game should have the same rules as the NY Times "Spelling Bee" puzzle (see attachment): a word with 7 unique letters is scrambled, one letter is designated as the "key", the user tries to make as words as possible using the key letter and any of the other 6 letters. Letters may be repeated. The user earns 1 point for a 4-letter word, 5 points for a 5-letter word, 6 for a 6-letter word, 7 for 7, etc., plus a 7-point bonus if the word uses all 7 letters. Words must appear in a dictionary, must not by hyphenated, and must not be proper nouns. The interface doesn't have to be fancy, it just needs a list of letters, a list of words that the user has correctly guessed, a field for guessing new words, and feedback that tells the user if the word is OK or not. The game should run on Windows. $50 bonus if it will run on iPhone. Project should be completed within 21 days. Paying $200.