Present her with a compelling argument that touches on the Pokemon franchise's brilliance. Maybe even have her play a little.
You get the pokegear from your mom after you talk to prof elm.
you give her a sun stone and trade her
go to ash's mom and ask her to sack a treeco
You talk with your mom about giving your money to her so she can save it. This is so you don't lose your money if you lose battles
Besides your mom's house no. You can only get a home in Pokemon platinum.
Other than the house you started out in where your Mom lives, you cannot have a house.
Ask your mom to save your money, and if your lucky, she will buy a moon stone with your money, and it will be in the Pokemart, just talk to the guy near the registry.
When you start to leave New Bark Town your mom will come and give you your fixed PokeGear. Then when you open your menu your PokeGear symbol should be somewhere at the bottom.
They are not in Pokemon HeartGold
You cannot get Dialga in HeartGold version.
you can't get sinnoh in heartgold.
Hoenn is not in heartgold version, only johto and kanto are in heartgold, hoenn is in emerald