What is good Tech Stack for startup

Good Tech Stack:
Front End: Twitter Bootstrap, JQuery,
Backend: SpringMVC, Java
Database: MySQL
Mobile: Android, PhoneGap


Tools for Windows:
Development Tools:
JDK7
Maven 3
Spring Tool Suite
STS SVN Plugin
MySQL
HeidiSQL

Tools for Mac:
Development Tools:
JDK7
Maven 3
Spring Tool Suite
STS SVN Plugin
MySQL
Sequel Pro

Tools for Server:

Other Tools:
Disqus


References:
http://www.quora.com/What-technology-stacks-are-used-the-most-in-tech-startups-Why
http://leanstack.io/cloud-stacks
http://weavora.com/blog/2013/03/24/2013-the-development-stack-for-your-next-startup/