Remembered an old stand by from my days with the Original Droid.... K-9 mail .... it allows you to set up ,,multiple accounts that feed in to a universal inbox... easy to set up... open source.. free... does push notifications and incorporates in to the browser and what not to where if you hit an email link it opens up automatically to which ever account you have set as your default account.. just as you'd expect it to work.... You can either side load it or just get the amazon market and download it form there...
