Upload to Geograph Servers
This isn't a full submission process, but does allow reasonably easy upload of images direct from device.
Images uploaded via this process are then stored in your 'Temporary Upload Area' on geograph servers; afterwards then proceed to submit them, either here on mobile, or even login on a desktop and submit them that with a big screen!
NOTE: Currently the image is uploaded at FULL resolution, and later downsized (not resized on device first!) - so beware of data charges!
You can also select images from various online services. Also the 'Choose a local file' should prompt you to take a photo directly (at least on Android)
The 'auto' tickbox, will take you directly to v2 submission, so can submit the first image right away, without having to click through manually. Note only works if you have 'Save Location' enabled on device so the image has embedded GPS location! Otherwise the photo(s) will just be transfered, and you can submit them later (from the 'Multi Submission' process) on a Desktop Machine.