Although this ignores the fact the Tab comes preloaded with Swype as its keyboard. Most who have tried it view Swype's mechanic as the future of touchscreen text input (and it will no doubt migrate in some for to the iPhone at some point). However it would actually be worse suited to a larger screen because the swiping motions would need to be significantly longer/larger to reach across a larger keyboard.
Given the chosen input method, the 7" form factor appears to be a better decision, not a worse one.
The bigger danger is that children may start to understand terrorism as an expected element of conflict, one that has existed for centuries, one that should be expected, planned for where it can be anticipated, but not allowed to disrupt real life. Then they would learn to have a measured response to this touchy buzzword, and we've lost fear as a tool to control them.
Naturally this must be prevented.
After Goliath's defeat, giants ceased to command respect. - Freeman Dyson