Am looking for something that I can use to organize the lives of myself and my family... Something that will replace the kitchen calendar and to do lists and diaries etc... I currently use a couple of android apps on my (quite old) sony xperia phone but it's a bit small and fiddly and just not ideal... I want something that can act as a calendar for my whole family that can live in the kitchen (in one of those proppy up case things!) but it needs to be portable and fit in my bag (Preferably with a pretty cover that I can buy separately 
). I want to be able to use the calendar offline so I can update it at any time.
Should I go for a new mobile phone or an android tablet? An ipad would be my ideal but is way beyond my budget unfortunately. An iphone is smaller than I would like and I don't like the fiddley touchscreen keyboard on such a small device (my xperia phone has a flip out qwerty keypad which is great). Possibly a kindle fire or blackberry playbook or other tablet??? I'm not sure about the calendars on any of them though, and I've read that cheaper tablets can be unreliable which is no good as I'm going to have my life stored on it!! The cozi calendar app and google calendar both look like what I need but I don't think they can be used offline!
Can anyone out there give me some advice? Many thanks x