I don't really know the real answer, but so far, I don't think so.
Yes there will be a guide for those two games, But if you want more secrets and everything you need just ask me,Spectra.I will answer all Pokemon questions each Saturday.Thank you!
No there is no guide book however the region doesn't exist in heart gold only yellow? red, amnd ruby i think. It is mentioned though as prof. Oaks is always with you. <3
I put a link to a guide all about legendary pokemon in HeartGold in the related links.
Yes, there is a Strategy Guide. You can pre-order it with the games, if you want.
Yes, you have to buy it somewhere.
No, only if you want the special edition figurine. You also get 10% off of the guide when you pre-order.
You are most likely going to be mad when you find out... According to the Pokemon Strategy Guide, Smeargle can be found in the Ruins of Alph (in the Johto region, NOT Kanto). It is extremely hard to be found here... If you are too lazy AND you have Pokemon Platinum, Pearl, etc., you can import Smeargle from there. It is MUCH easier to be found there.
You have to trade from diamond,pearl or platium :) thats what it says in the guide book.
There are two ways, trade with someone who didn't use their master ball and doesn't want to use it. Make sure it's attached to the Pokemon you are getting. The other way is if you use action replay. I got this info from the Pokemon heartgold soulsilver official strategy guide.
if you mean seviper then you can get it in the safari zone. to learn how try looking at the pokemon marriland johto safari zone guide.
You can get lotad in the safari zone if you place the right items. to find out exactly how look at the pokemon marriland or serebii safari zone guide.
if you mean lunatone then you can get it in the safari zone if the right objects are placed. to find out exactly how visit the pokemon marriland or serebii safari zone guide.