A: The price for the current version of iSudoku is US$14.95 for ONE-TIME registration. Registered users will enjoy free upgrades in the future. Since the price for future versions of iSudoku may rise, it's better to purchase and register now if you like this software.

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2. Q: What functions will be added in future versions?

A: This game can be upgraded in many aspects. It will provide different sizes of the puzzle besides 9 x 9, such as 4 x 4, 6 x 6, 12 x 12, etc. In addition, the user interface will be editable in colors, background images, and so on. It will support other functions like print-out, manually-input-puzzle, saving current puzzle state, etc.

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3. Q: How often is this software upgraded?

A: It depends. Generally speaking, as a shareware, this software will be upgraded on regular bases. Several minor version upgrades will be published before a new major version is released. The author is dedicated to making this software better and better.

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4. Q: What platforms does iSudoku support?

A: This game is developed under .NET framework 2.0. So it supports all Windows platforms with .NET framework 2.0 installed.

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5. Q: When can I get my license key after I successfully make my payment?

A: If you purchase iSudoku through PayPal, usually we will email you back with your serial number in 1 business day. If you purchase iSudoku through Protexis, you will receive your serial key immediately upon successful payment.

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