Is my Kindle a book?

I haven't been posting because I've been too busy with my 2 Kindles.  Yup.  One old fashioned 3rd Gen. that I like to use for reading and the other is my new toy, the Kindle Fire.  My real dilemma goes beyond whether it is morally reprehensible for a true lover of books to own a Kindle (of course it is) or how much to let my kids play with my new Fire (I don't even let my husband play with it). 

Here's my actual problem: 

The nearly 18 month old baby calls my Kindle a book.  She actually calls the Fire "bubbles" because of that silly bubble app she gets to play with sometimes (it's really dumb but super fun, the best kind of app).  But when we have snuggle time (i.e. breastfeeding a toddler) I immediately reach for my "book" (Kindle 3).  The trouble started when she looked at me, questioningly, and said, "bubbles?"   I said, "no honey, that's mommy's...um...book.  No bubbles.  The bubbles are on my other Kindle." 

I understand that there are about 15 things inherently wrong with this whole conversation, knowing, as you do (in my narcissistic reality), that I'm a Charlotte-Mason-inspired,-Classical-Education-fan-with-a-slight-bend-toward-unschooling kind of momma.  If you have no idea what any of that meant, just know that I obsess too much about what matters to me and how I will ever teach it to my kids.

So here is my actual, actual problem:

1) Why am I reading when I should be making eye contact with my child or singing or teaching her the a-b-c's or something useful?  Frankly- because it's about the only chance I have to read these days.

2) Why do I need 2 Kindles?  The answer is actually another question:  Why do I feel a need to explain the difference between the two to my toddler?  The real answer of course is that I don't like major reading on a backlit screen and the old Kindle just doesn't do what the Fire does.

3)  Is it really a book?  I'll leave the answer to this one to the experts.  The debate rages on.

In the meantime, you can follow my reading trends on Goodreads.  There's an android app for that.