Apps for the iPhone and iPod Touch
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homedatasheet.com, Inc.

iWaylogger is a waymarking app that is always up for some light geocaching. Averaging GPS feature (iPhone 3G and 3GS only) assures others will be able to follow in your footsteps. Create your own .gpx files, or download from a 3rd party source. Easily create, edit, and copy logs to your iPhone's built-in e-mail and MMS apps.
Files may be downloaded from or uploaded to your Macintosh or PC using a Wi-Fi network.
Quick-loading street/hybrid maps with automatic zoom & centering features will keep you headed in the right direction!

***Just in time for Winter! Now, get wind chill readings with just one touch. Snow in the forecast? Want the latest accumulation predictions? WeatherLCD is the app for you.
The world of high ticket prices, checked bag fees, and flight delays is tough enough. Now, at least you can have an idea of how smooth or bumpy your fight will be with WeatherLCD's map-based "Turbulence" view. Frequent flyer or aviation enthusiast, this WeatherLCD feature is for you.
Ready to go out on the water? You can have access to the (U.S.) National Weather Service's experimental marine point forecasts in graphical and detailed text formats for the Pacific, Atlantic, Gulf of Mexico, Great Lakes (U.S. portions), and more! Get wind, wave, and marine hazard data. Area forecasts are available far from shore in some locations (e.g. Gulf of Mexico & portions of the Caribbean). Boaters, surfers, beachgoers, this app is worth checking out. Click the link below for more details.
As always, WeatherLCD provides current weather data in a retro LCD format, as well as forecasts, weather alert products and animated radar. If the weatherman on TV always seems to be wrong, maybe you can do better! Note: All weather data presented by WeatherLCD and all graphics (except those in the bottom tab bar and the main app icon) are from the National Weather Service and not subject to copyright protection. homedatasheet.com, Inc. is not affiliated with the National Weather Service.

Here's a weather app that provides current conditions across the UK and Irish Republic using a map-based interface. Loads cached data if you do not have a network connection- perfect for iPod Touch users. Map Pin Weather UK/IE is easy to use, and easy to afford. (For sale only in the UK and Ireland App Stores).
Want an example of our work, for free, right now? Check out this topo Web app complete with auto-location using your iPhone/iPod Touch, or minus auto-location using your desktop/laptop.

Professional and serious amateur photographers, use SunSked to help plan your next outdoor shoot. It's a solar calculator app that allows you to determine when optimal lighting conditions will occur, or see what you'll be dealing with if you have to shoot on someone else's schedule.

*** New version with military AND non-military locations is ready!
Going TDY in the Contiguous United States (CONUS) or overseas (OCONUS)? PerDiemMIL is for you. Look up the per diem rates for CONUS and OCONUS locations using the on-board database which automatically checks for updates when a Internet connectivity is available. Buy perDiemMIL today! Note: homedatasheet.com, Inc. does not have a business relationship with the Department of Defense.

AccuTOPO 3.0 is ready! Find the USGS elevation for your approximate position and the elevation of points around you by tapping the screen of your iPhone or iPod Touch. Now, with natively coded street and hybrid maps, you get elevation data fast. (Note: homedatasheet.com, Inc. is not affiliated with USGS.)

You're one of the people who understands that what the iPhone calls "Altitude" and elevation above sea level are two different things, right? Right!? Now, at last, the EGM96 geopotential model is in an iPhone app. Get it for free, and start measuring elevation today!