I would think that would be sufficient given your/her expected use. We bought my 8yo one for his birthday because there are so many great special education apps for him. It was the lowest priced one at the time, I think it was 16GB with WiFi. There are so many WiFi hotspots now that is didnt make sense for us to spring for the 3G wireless option. Many apps and movies require WiFi to download and it's a lot faster anyway.

He's got over 100 songs and 6 movies on it along with all of the apps (yes there are some games on it, too) and there's still plenty of storage available.

There is an Apple book reader app but since we already had a Kindle account, we have a few books on it as well.

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1980 300TD-China Blue/Blue MBTex-2nd Owner, 107K (Alt Blau) OBK #15
'06 Chevy Tahoe Z71 (for the wife & 4 kids, current mule) '03 Honda Odyssey (son #1's ride, reluctantly) '99 GMC Suburban (255K+ miles, semi-retired mule) 21' SeaRay Seville (summer escape pod)