Just been playing with the iTead GPS shield. Love it.
I have written my own NMEA parsing library to make working with it (and other NMEA GPS modules) a real doddle:
Enjoy...
Can you explain why yours is any better than TinyGPS + ?
Do you offer that degree of flexibility could look at your code but asking question is easier...
8) 8)
Mine is better because I wrote it 
I haven't looked at TinyGPS, so I don't know what it does or how it does it. All I know is mine works well.
-- edit --
Just glanced at TinyGPS++ and I don't like its interface. I don't like the fact that you have to manually pass it the data read from a serial stream - mine does all that for you - you just pass a Stream object in the constructor if you don't want to use Serial.
And tjnygps+ is a whole different thing entirely.
I''ve used both and tiny+ is the easiest of all
Dov
I'll tell you one thing my GPS library does that TinyGPS doesn't - it allows you to set the power mode of uBLOX NEO-6 modules (and others that use the same protocol). You can put it into low power mode so it uses about a quarter of the power.