My apology. I have been busy the past couple of days so I could not check into this. Anyway, I still have it available and noticed a lot of people have shown a great interest. I need a new phone before I can let go of this one. I am expecting a N1 sometimes soon and once it arrives, I'll sell the N900 to the luckiest person...
Not sure, I will have to check into that for you. I believe it is transferable but I don't know.

Not sure what you meant by "original" but the batteries were purchased of ebay and they have been great and useful since. I purchased them when I learned the battery life of the N900 is terrible so I try keeping an additional battery with me wherever I go just in case the juice runs out of one.

Absolutely none. This guy has been well protected ever since it was purchase. The screen protector is great.. barely noticeable.

Will do that as soon as I get the chance.
Thank you.