I have a couple of these modules.
The reason I found them was because they use the TI  CC3000 WiFi module,
a product I was (am) working on uses the CC3000, this is a troublesome=20
beast but with some good features.
Headless WiFi configuration is a great feature.

I have not had much time to play with the Spark Core, but I'll tell you=20
what I can.

The Spark Core is designed to be used with their cloud, allowing=20
internet wide control of your device
the development environment is browser based (called Build) with over=20
the air loading of your code to the core.

It is arduino flavoured code with good community support.

The default program is called 'TINKER' and interacts with a phone app I=20
assume it does IOS it definitely works with Android.

There is security built into the system so you should only be able to=20
connect to and control modules associated with your account.
First time you log in you 'claim' a core, you can release a core, and=20
claim others.

You can develop locally and limit access to your own wlan/lan if you=20
want to.

One downside to the CC3000 is that it cannot be an Access Point, and I=20
don't think it supports WiFi Direct.

My  'If only I had the time', applications include Home Solar Inverter=20
monitoring and Electric car data logging, so when the car is home it can=20
report its status and download the latest data.....

I wish I could devote more time to these things but the next product is=20
already taking my time, so The Spark Core is another ornament on my desk.

It configured and worked as advertised, the documentation is quite good,=20
the rest is up to you.

I have no affiliations with Spark Core other than being a customer.=20
Spark Core was a Kickstarter project

Here's another ornament on its way to my desk.
https://www.indiegogo.com/projects/vocore-a-coin-sized-linux-computer-with-=
wifi

Trevor

> https://www.spark.io/dev-kits
>
>    It comes complete with an ARM Cortex M3 controller and 802.11b/g=20
> interface
>
>    Has anybody played with this and what are your thoughts?  It looks=20
> interesting to me.

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