what's in season?

Another programming project for those of you who are just itching for something to code. Basically, I want a website which can tell me, given my current location, what fruits and vegetables are in season right now.

Some thoughts, questions and requirements

• The site must be dead simple to and very pleasant to use. This is not something you should have to read documentation to figure out.
• This kind of thing could be easily international, so I want pictures. Maybe you can grab them from the Wikimedia Commons. I guess it would be fair to give you bonus points if you localise the thing, or maybe let me play with the language settings so I learn how to say 'rutabaga' in Arabic.
  
• How does the user tell you where s/he lives? As a default, it would be nice if you auto-detected it, but what might be nicer also is if I could play around and plug in different locations. How would you pick a location? By pointing at a map of the world? Also, maybe you don't just want a single point in the map, but a region of N kilometers around me. The question is basically, what grows N kilometers from where I live, where I get to specify
  
• Likewise, what do you do about the current date? It would also be nice if I can play around with this, asking not just 'what's in season right now' but 'what's in season during wintertime?'
• Where is all of your data coming from? How are you going to store it and look it up? What kind of data do you really need?
  
• If you want to get really really fancy, you can make the site adapt to current events. Maybe parse newspaper texts to find out that it's really not a good year for mangoes.

This is not necessarily a Haskell project (although in my silly, silly eyes, everything is potentially a Haskell project), but this might be a fun way to learn how to do web stuff and maybe play around with databases. In fact, such a project might also be useful for building a Haskell web tutorial, a kind of site that we can build together. Simple objectives that everybody can understand, and actually useful for something.

This project might also be a good way to learn about building user interfaces. Or maybe if you're not interested in working on that stuff, it would be a good opportunity to partner up with somebody else. They worry about the UI stuff and you worry about the code. I don't know anything about UI, except that I think it's important to get it right. If it helps, I greatly enjoyed Donald Norman's The Design of Everyday Things, as well as Bret Victor's Magic Ink.