When initially researching the competition during the early stages of the product development, there did not appear to be very much competition, other then two larger contenders. However, as this project has closed in on completion and an alpha release, it seems there are many more lesser know start-ups and software firms releasing a product much more similar to ours.
I do feel that there is still a niche market to be targeted that may bring in some revenue, however, at this point, could it be considered that there will be too much time put in, to actually yield reasonable results?
I understand this is a rather generic question, so please request more information that may turn this question into something more finite and answerable.
This answer might be somewhat counter-intuitive, but I'd say that an increase in competition should encourage you to pursue your start-up even more. Here's why:
A lot of people would ideally like to run companies that have no competitors so that they could be care free and lazy, but I'd argue that the presence of a few similar-sized competitors creates a more exciting and rewarding environment for a startup.
Being so close to having a product that you can send out into the field it would seem a shame to kill it now. Unless you have another idea which is losing you money because you are not pursuing it.
If anything, the new competition you've spotted should help you tweak and iterate your product even more. Identify what their killer features are and make sure you do it better. I'd be encouraged that actually you've started up in a space that others have deemed worth setting up in as well.
Competition is healthy - if you gave up every time you saw some fiesty competition you'll never have a business...