This sounds interesting if you have one.
For $5 you can download Navionics charts to your IPhone - iboats Boating Forums
Printable View
This sounds interesting if you have one.
For $5 you can download Navionics charts to your IPhone - iboats Boating Forums
i have it on my iphone great app
You can also use an Ipod Touch (3rd Generation) that you can buy through Amazon.com for $184.00. It appears it is $9.95 for Navonics for Tennesee area. This is getting good reviews on other forums.