......It would be nice to get a feedback whenever you have a chance.
I've used weathertrack for over a year and like it. When sailing for any length of time or number of days, I always have the multiple day gribs for my area saved.
I like that I can set up a passage area and easily refresh the data when I have a 3G signal on the Ipad.
It would be more useful if it had more granular wind data around the coast. Your product is better for big picture planning, but when I want to know where the wind will be in the Bay or how far offshore I need to get to find 15 knots to make progress, I go to sailflow.com. Given that coastal cruisers are the largest population, I would think your app would be much more popular and useful with more granular coastal wind data.
Another for the suggestion box would be to have a drop down box, so I can pick a time slot, rather than have to scroll through them all to get where I'm interested in the series.
Finally, how do I get a grib file over the SSB into your app with only an Ipad? If you made that a one cable, one button operation, you would retire quickly.