Microsoft finance head, Peter Klein, while speaking at the Goldman Sachs Technology & Internet Conference told attendees that Microsoft is open on exploring Windows tablets with different sizes.

This could mean that Windows 8 and Windows RT tablets could be released with a 7-inch display size in the future. This would help Microsoft and its hardware partners to compete against Apple's iPad mini, Google's Nexus 7, and the Android tablets on the market with varying display sizes and aspect ratios.

"We're really set up for that," Klein said. "The notion of flexibility and scalability of the operating system is actually intrinsic to our vision and our strategy. We talk a lot about devices and services, and when we say devices and services, we mean a set of experiences that are complete, that are compelling, and they are consistent across a whole range of form factors and devices, including size of form factor."

Tablets running Windows 8 or Windows RT come with displays with 10-inch screens or larger. 

Geekwire reports that according to Klein, as Windows Phone 8 and Windows 8 share the same kernel, the company theoretically have devices from 4-inch on the phone side to about 27-inch on the larger all-in-one PCs.

"So I think we're really set up to deliver the most versatile set of experiences across form factors, whether that's 4-inch, 5-inch, 7-inch, 8-inch, 10-inch, 13-inch. And along with our partners in the ecosystem, we'll work through that based on underlying demand."

Size and battery life are the factors to running a Windows program on a tablet. While the Surface with Windows RT is relatively thin, the Intel-powered Pro model has a thicker depth and is heavier. This can make it difficult to shrink down the screen size and maintain slim proportions. 

Microsoft in the end might leave the smaller tablet sizes to OEM partners, like HP, Dell, Lenovo, Acer, Asus, and Samsung to name a few of the top ones. 

Rumored are that Microsoft may also try larger display sizes in the future as well. 

Would you buy a 4 to 7 inch Mircosoft Tablet?