Not sure of the context of your post YES, but in the past few months we
have evaluated several modules and settled on the Telit. It isn't
AFAIK available on a breakout board, but was by far the easiest to get
working with multi socket TCP/IP.
We used an external ChipSim, but it interfaces to any SIM card holder.

a lot cheaper than the parts you list too.

On 2 March 2012 22:39, YES NOPE9 <yes@nope9.com> wrote:

> Cellular modules may or may not come with a SIM slot.  A SIM is required.
>
> The Digi Connect WAN GPRS is available now for $450 MSRP. For more
> information, please visit http://www.digi.com/products/cellulargateways/.
> For more information about Drop-in Networking, please visit
> http://www.digi.com/products/wirelessdropinnetworking/.
>
> http://www.sparkfun.com/products/9270   $80
>
> http://www.sparkfun.com/products/9533   $60
> You can use this module to accomplish almost anything a normal cell phone
> can - SMS text messages, GSM/GPRS, TCP/IP, and more!
> There is no SIM socket on the actual cell module, you might want to
> consider using our SIM card breakout board.
>
> http://www.semiconductorstore.com/cart/pc/viewPrd.asp?idproduct=3D47152 $=
134
>
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