UV- Re your iPhone App, I'm curious. I've been in touch with the Met Office commercial data services dept last year to get realtime UV levels and ground level o-zone levels based on the phones GPS location to help calculate the VitD levels someone can generate and how long they can spend in teh sun before they need to put sunscreen on and didnt really get anywhere hence my curiosity about your app.
Unfortunately the Met Office doesnt have detailed enough realtime data needed to help calculate the UV index levels, and the air pollution monitors similar to the device you see here maps.google.co.uk/maps?q=sawbridgeworth&hl=en&ll=51.817529,0.14883&spn=0.065685,0.180416&safe=off&hnear=Sawbridgeworth,+Hertfordshire,+United+Kingdom&gl=uk&sqi=2&t=h&z=13&layer=c&cbll=51.817599,0.148897&panoid=UT9QC7O1M1v4xOrG4KJCoQ&cbp=12,119.59,,1,7.06 are too general to calculate the ground level ozone which can also block out the UV-B wavelength by upto 3times, plus there is also the issue of cost to access what realtime data they could provide so its not really got off the ground becuase it was just too general hence my curiosity about your iphone app.
As I wanted the app to be a global app for iphone and android, what I also found out is that met offices in different countries have a variable level of accurancy with their UV measuring and ground level ozone monitoring making it quite a huge project to make it something worth while and most importantly accurate enough for parents to trust and have confidence in it and have it on their smart phones whether at home in the UK or on holiday abroad like on teh beach.
But if you are working on this app, are you taking into account the GPS location (Long/Lat), Metres above sea level as this affects the UV strength, Date to calculate sun strength (distance between earth and sun), Skin Type, Cloud Cover & Type as different clouds block UV-B & UV-A to varying degrees and Ground Level O-zone? If not imo, the app would be too general and could make you especially in the US subject to litigation.
The original idea for the app was also going to indicate to parents when they needed to (re) apply sunscreen on themselves and their kids in their charge so if going to the beach, park or outdoors for a period of time, they would pop in their kids and their own details once ie skin type plus any other kids they might be looking after for that time,and the factor of the sunscreen in their possesion and then it would raises an alarm to indicate which person(s) need to (re) apply their sunscreen as we all burn at different rates and to avoid burning which can spoil any holiday or day out. To help commoditise it through sponsorship, the GPS location would be used to indicate the nearest source(s) of sunscreen on sale (handy if abroad) to purchase more if they ran out.
Its just a math formulas to me (I'm a computer programmer been programming since the age of 4 and yes parents give your kids a www.RaspberryPi.Org to help make education* more fun as we have a shortage of good programmers in the UK not too mention engineers, scientists & mathmaticians), but is your app taking into account all these factors?
We felt during development meetings with the data available it was too general for our liking so nothing more has been done plus the Met office is no longer funded by the MoD and this year some of the Met office UV data is going to be sponsored by a sunscreen company if the contracts went ahead, hence my curiosity towards your iphone app. :-)
We really looked into all sorts of things for this project, so for example, UV-B doesnt pass through glass or plastic (think conservatory) unless its a special (expensive) kind which in all honesty nobody will have fitted to their conservatory or green house for that matter, we even looked at things like diet for another aspect of the VitD calculator and also looked into seeing if the NHS would help fund some of teh development as it would help improve the nations health with illness prevention which would in turn reduce demand on the NHS and thus lower our taxes but just didnt get anywhere with them.
So if you dont mind saying does your app take into account those variables I have mentioned above?
*Having studied some psychology to help with the Artificial Programming I do, one of the things I have learnt is that kids like things to be interesting and exciting. Now by teaching them to program on something like the Pi they learn maths without realising it and they also learn reading and writing language skills by learning to program in different languages without realising it as well.
The Pi is something that could really capture the imagination of kids and help their education without them knowing it. The Pi is quite powerful (you can make it a Sky HD box) but its simple and intuitive enough for kids to pick up not too mention cheap at £20 (yes £20) and I know they are aiming this at 8yr olds and above; personally given the right parental guidance the younger kids