A few posts back, I talked about the development of an Android app for tide predictions for South Wales. This app is now on Google Play.
If you live in South Wales and are vaguely interested in tides/weather, then you should probably download it :)
The main advantage is that the app does not need any data connection to display the tidal data, which is useful in areas with low signal. In future, I hope to add further features, such as a more accurate tide graph (using a proper ‘wave’), surf reports, and just general UI updates.