Although I do think this is a great idea, I don't think 4GB flash is being made, but, this would be a way to use up some 8GB flash memory.
Personally, for typical consumer use, with all the basic apps incrementally increasing in size every single update (FB, Twitter, etc.), to where some are now over 100MB each, put a few apps in, some music, some video, books, this all adds up to 16GB not being enough for average user, Apple needs to step up to 32GB base or give us a memory slot to add more! (I cannot put all my apps on my iPad Mini 16GB, would like to put some video on it, but, no room
🙁 ).
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Too many reviewers bad mouthed the iPad Mini 1st gen. calling it "same as iPad 2" when it only shares 2 things with iPad 2: A5 processor and non-retina screen...it has many advantages over iPad 2 as it has all updated electronics around that processor, to where it is as capable as any late-2012 iOS device:
iPad Mini 1st gen, does these things iPad 2 does not:
• BT4 gives it AirDrop and all handoff/continuity features.
• cell models capable of LTE
• two speakers instead of one
• same battery life with a smaller battery (advantage of lower power consumption of physically smaller, more efficient screen, even though it's the same pixels as iPad 2)
• runs iOS 8.3 just fine and will run iOS 9, but without any split screen features.
• better mic
• better cameras
• iPad Mini 1st gen. is the thinnest and lightest iPad.
--• For those on a budget, iPad is out of reach, or for education, or for POS, the iPad Mini 1st gen. is just fine for a first iPad:
*You can still get the iPad Mini 1st gen. for less: on sale at various places, and on Apple's certified refurb. store (with new warranty) starting at $209
http://store.apple.com/us/browse/home/specialdeals/ipad/ipad_mini.
I've had my iPad Mini 1st gen. since Nov. '13, still works just fine.