Yes,
M001 has no sim card, so no GPRS and it's quite poor in many other aspects.
I just needed a bigger display to read pdf files without the need to convert them in ebook format as technical documentation - diagrams, programming code etc. - is quite different (unreadable) after the conversion (my phone has a 2.4" only display ...).

I still believe that, as far as the mobile Internet is concerned, the best solution is still the smart phone, not the tablet. When you need Internet in your pocket, you just need a smaller device. The tablet is quite big and still quite limited in many aspects.