An iPad is a computer...just like a laptop or desktop. There are electronics inside, but no fan. It has what is known as passive cooling (heat diffusion though the AL casing into the surrounding air). Most computers have fans inside to move hot air out. Tablets don't because they are intended to be slim and lightweight. But physics is physics and you can't avoid it or beat it. So the iPad gets warm when used heavily, which graphics-intense games do (all computers heat up when used heavily). However, just because it feels warm to your hand doesn't mean there is a problem. If your iPad got too hot it would shut down and force you to stop playing. Computer chips are not people and they can withstand temperatures that make people feel bad. It is not a problem when computers and electronics inside get warm. They can take it for years and years. If it is a problem for you, then get a since case for your iPad and it will keep some distance between you and the AL (which helps take the heat out, by the way). You will notice it less often. When you say "too warm", that has to be for you, because the iPad doesn't have a problem with those temperatures.