We have the kindle fire for Kids.
The twins are 3 and they are great for keeping them entertained for half an hour whilst I grab a shower etc.
One twin gravitated to just educational apps like alphablocks and can recognise all the alphabet. Both adore the memory games and any that get them to use shapes and colours are brilliant.
Both can can count up and down to 20.
They apply the knowledge gained in other areas frequently pointing out numbers and letters as we are out and about.
It's really supported their development in DHs language.
It's better than passively watching TV as it encourages interaction and I use it as an alternative to that.
They can't accidently go on the Internet so I can relax and not have to hover.
The kindle fire for Kids comes with a sturdy case and a 2 years no questions asked replacement gurentee with 12 month access to kindle fire for Kids apps and games.
I got mine on for £70 with all of the above.
We are off on a very long car journey on Friday and they will be a Godsend. We have had ours since Christmas when they were 2.5 and no regrets. In fact DH who was a naysayer has been really impressed at the educational value...plus we may have let them have them at 6.00am on occasion so we can snooze 