There definitely seems to be a bug with Ethereum Wallet/Mist 0-9-0. I use the ethreum.org/token
sample with no modifications. Created 100M tokens and paid the gas. A week later, it still shows "creating contract" even though it's sync'd a few times and my wallet has been debited the transaction fee. I've seen reports on the web about Ethereum Wallet getting "stuck" but never saw any resolutions to this problem.