I've been eyeing this Music PadPro vs a cheap laptop.
Music PadPro looks great for all the good reasons that ScottY so clearly mentions.  Of course, the price.  Geez.  Maybe the Chinese will come out with a $400 version before long.
Otherwise, the idea of a cheap laptop really appeals to me.  I think the problem of the screens dimensions etc, could be solved by setting the laptop on it's side.  That way one could easily see an entire page of music.
But, I don't know enough about computer's to have figured out how to turn pages using my above idea.  
Does anyone have any answer's to this?
When I do use music it is for the notes and chords, as I don't sing.  So the lyrics and chords alone wouldn't do me much good on say a tune like "Theme from The Summer of '42".   A simpler melody I could probably get through, but the ones with a lot of unusual chords and melody, I would need the music unless I played it a lot.
Scott Langholff