Recently, I installed Cultured Codes "Things" app on both my iMac and iPad2 to keep track of my daily and project-related tasks. Although I have to manually synchronize them through WiFi, by launching the app on both my iMac and iPad2, Cultured Code promises to simplify this process by releasing a Cloud Sync feature soon. This is in accordance with what I've read on their website; and solves what I feel is it's only shortcoming.
So far, I have found Things to be a very reliable and an easy-to-use app. Besides being flexible, I really like that it includes a tagging feature to make it easier to group task according to a particular tag.
Please let's me know if you share my thoughts or not about Things.
The Tech Coach