I'm a professional photographer and have been shooting for over 10 years.
Let me just keep it simple. 99.9% of the time (nowadays) when you shoot pics you just end up emailing them, uploading them to FB, keeping it on your computer etc...
The MT4GS camera is excellent for producing pictures to share online or to even print.
There is no need to have a separate point and shoot. The MT4GS has great built in options to do action, micro, panorama etc....utilize those and you'll be amazed.
Just buy a few extra batteries: http://forum.xda-developers.com/show....php?t=1224178
...and a good SD card: http://www.amazon.com/Lexar-MicroSDH.../dp/B004AM610M
You're all set. Have fun on your vacation!