4.7 is still there. Whatever you do, don't uninstall 4.7 until you've used 6.1 for a little while. I can't remember what they were now, but I had some issues with 6.1 that caused me to uninstall it.

Also, if you use the web to access your bank account history, make sure the bank website supports 6.1 before you do away with 4.7.

Kerry