There is no known purpose for it
That Pokemon is Rotom and There is only one way to actually see it and that's by battling it. You can find it in the old Chateau. Its upstairs in the room with a TV press A against it to battle it :Note: you must have the HM cut to get inside the Chateau
Gastly can be found at Pokemon Tower and the Lost Cave. It's very common at the Pokemon Tower, having a 90% chance of appearing there. Note, though, that you won't be able to capture one there until you have the Silph Scope.
After beating Gardenia in Eterna City, go to the Old Chateau and speak to her outside. Then, between 22:00 and 4:00 enter the Old Chateau and find the room with the tv. Press (a) oon it and thump it. You will then battle Rotom. Note: You can change the time on your ds instead of going on at night. It will be at lvl 20.
It's a book
You can find the note book in your messages page
An Authors Note Is The Comments Given By The Author Of A Book About The Book. The Authors Note Is Usally Found At The Very Beggining Of The Book Or The Very End.
the note book was blank
Rotom is inside the TV in the old chateau (the old chateau is in Eterna forest and you will need the HM cut and the 1st badge), once your in front of the TV go up to it and press "A" and Rotom should appear.(Note: Rotom will only appear if it is between 8PM and 4AM)
The Death Note.
you get the note book of leo on poptropica you have to fine the man where there building the statue of liberty and theres a man who says theres something the ledge of the consturction building you go to the top and the note book is there
There is no real difference. The two terms refer to a smaller computer, designated net book by some companies and note book by others.
Pick mudkip