G-Alarm is the perfect alternative for you. A finger-friendly and reliable alarm clock for Windows Mobile. G-Alarm offers everything to help you get up more pleasant. With its innovative features you can customize your settings according to your needs. Here is the official preview of the new version , it still needs to be translated into some languages but you can already download it and try it out.
Check the review for an older version on BestWindowsMobileApps.com