For those heretics with Android devices, and interested in timing trips involving prevailing coastal currents in rivers (Beaufort, Cape Fear, Manasquan, Hudson, others) and harbors (NY, Charleston, Savannah, others) there is a very nice Android app called "Currents" available from Google "Play" (the old "Market.") The app uses NOAA current data and overlays the data onto a Google Maps background. It displays an arrow indicating both direction and speed (larger the arrow, greater the speed) of flow; like Coastal explorer and other SW and chart plotters. Clicking one of the arrows brings up a data box with slack times, max ebb and flow rates, etc. Date and time-of-day are set when the app is opened, but are easily adjustable to show conditions at a different date/time. This app is very nicely done. I'd rate it at 4 stars, only because It does not use the device's GPS to find itself. But, it's easy to scroll. The home web address for additional info is www.yoyana.com/currents. Jim Peg and Jim Healy aboard Sanctuary Currently at Kingston, NY Monk 36 Hull #132 MMSI #367042570 AGLCA #3767 MTOA #3436