Email app that shows your email as threaded conversations?

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http://forums.androidcentral.com – The web site GMail.com shows your email as threaded conversations - when it shows "Hi from Joe" it allows me to look at the most recent message or easily look at the whole message chain. I can delete the whole message chain with one click. Does the Kindle Fire HD have anything like that - I cannot find a Gmail app in the Kindle Fire Store. Using the browser and gmail.com is just not as easy to use as a native app. Between this, not finding an app to play music fetched from my PC via WiFi (separate posting), and the stupid "main menu" user interface, the Fire has been a (HowTos)