G'day Sali,

Yes, there is one large pocket on the front left-hand side of the doorway.
Big enough to fit a book, keys, phone, torch, etc.

G'day Colin,

They're essentially the same in terms of materials and manufacturing quality.  The Shelter version is slightly larger internally, and obviously will give you additional space, but it is overall a heavier option.
Both tents can be used without a mattress, much like a standard stretcher bed, however, a lot of people opt to add one for extra comfort & warmth.
In terms of colder climates no tent will really keep you warm, although canvas options have better insulative properties. It is really important to note that Oztrail does not test for a waterhead rating.  This means that neither of these tents are actually waterproof.  If you expect to be in wet weather, or situations when you'll get heavy frosts and morning dew, you'd be best placed to upgrade to an alternative.

G'day Pauline,

The Oztrail Camp Mat Jumbo or the Darche 900 Swag Mattress will both fit, however, the Darche option is available in two thicknesses, and is a little wider and longer, so will better fill the entire space.

G'day Lyn,

There is the front D-shaped door that acts as a window when the front awning is up. The other three sides have internal mesh windows for ventilation however they aren't able to be seen out of with the fly on.

G'day Lyn,

The Easy Fold Stretcher Shelter is quite new, so we've not got a video yet, but we do have it on the list.
Pros: lots of sleeping space, extra-large awning, easy pop-up style set up, gear hammock under the stretcher, a good balance of mesh fabric for ventilation, and solid fabric for warmth
Cons: are there any! Access is only from one side.

The Ultimate All-Weather Stretcher
Pros: plenty of internal mesh for warm nights, a fairly quick set up style, dual doors for easy access, small awning to sit under
Cons: Poles can be damaged if not careful, some reports of condensation dripping through the internal mesh

Hopefully that helps!