http://www.the-magicbox.com/0607/game060713a.shtml
I'm 20 years old, and got kinda tired of Pokemon after Gold/Silver, even though they were my first Pokemon games. Still, I bought the GBA versions since they were good games. I would have gotten a lot more life out of them if I had friends nearby with the games, but alas I did not.
Now, Pokemon Diamond and Pearl has been confirmed to use Nintendo's WiFi connection, so now we can play with people all over the *world*!
I've heard rumours of this being in there, and I even predicted myself that it would be a bad idea for them not to include WiFi. The DS games will utilize the GBA slot, so you can transfer your Ruby/Sapphire/Emerald/FireRed/LeafGreen Pokemon into this game. I have Sapphire permanently fixed in my Ltd. edition Famicom GB Micro, training my 'mon between rounds in Ouendan. Can't wait.