Google has updated their Google Mobile App include support for Search by Voice on the iPod touch
Google Mobile App includes the following features: * Search by voice - speak your queries in American, British, Indian or Australian English accents, also supports Mandarin Chinese and Japanese * Just talk - simply hold your iPhone to your ear and say your query * My Location - avoid typing your current location when searching for nearby businesses (e.g. "pizza" or "starbucks") * Google Suggest - tap suggested web search queries and local businesses that appear as you type * Search history - quickly search again for queries you recently performed * Contact search - search your phone's contacts. * Vertical search - search Google Maps, Images, News, and Shopping
Google Mobile App also links to Google's other applications so that you can easily navigate to them.
What's New In This Version: - Add support for Search by Voice for iPod touch (2G or newer) - Improved stability when using Voice Search on restrictive networks - Fix crashes when searching for @ - Fix pasting into search box - Improvements to Search by Voice completion detection
You can download Google Mobile App from the App Store for free.