A spell checker will not flag strait or straight as misspelled words, since both are actual words, homonyms that are pronounced alike, but with different meanings.
I have yet to understand why a tablet computer with no keyboard is in any way better than a simple netbook. It seems like it is more like having Tommy Hilfinger's name on your clothes.
I see why Apple makes iPad's, since that way they get paid when people buy apps. But the advantages to the user do not seem obvious to me.