If you are a startup then lean methodology is the way to go and building your MVP should have been your goal yesterday and the next best time is today.
A minimum viable product (MVP) is a development technique in which a new product or website is developed with sufficient features to satisfy early adopters. The final, complete set of features is only designed and developed after considering feedback from the product's initial users. This concept has been popularized by Eric Ries, a consultant and writer on startups.
A minimum viable product (MVP) is the the most pared down version of a product that can still be released. An MVP has three key characteristics:
The catch to this development technique is that it assumes that early adopters can see the vision or promise of the final product and provide the valuable feedback needed to guide developers forward. This suggests that technically orientated products used by technical users may be most appropriate for this type of development technique.