"The launch of Windows 8 is the beginning of a new era at Microsoft. Investments we've made over a number of years are now coming together to create a future of exceptional devices and services, with tremendous opportunity for our customers, developers, and partners."The market hopes the launch proves to be a tremendous opportunity for investors as well. Microsoft has found it especially challenging to convince investors it can compete effectively against Apple ( AAPL) and Google ( GOOG), both of which have, or are in the process of releasing, their own products. With Apple's mini iPad rumored to be at a price point of $250 to $350, where it might significantly undercut Surface, Microsoft may find it difficult for Surface to have the level of impact that it expects. What's more, Amazon's ( AMZN) new Kindle Fire continues to be a top seller on the market at an attractive $199 price point. This only increases the pressure on Microsoft for Surface to be more than advertised. Likewise, this makes the success of Windows 8 equally pressure-packed (if not) burdensome to Microsoft's hopes.