ScoreKeeper for Windows Phone 7
Description:  ScoreKeeper is a generic scorekeeping utility that can be used to keep score for a variety of games. Some of the features include specifying whether negative scores are allowed, what method is used to input the scores, and specifying whether the game is turn-by-turn or random order scoring. It also allows you to save the scores to continue the game later.
App URL:  http://windowsphone.com/s?appid=b945e2ae-aa97-e011-986b-78e7d1fa76f8
The Setup Page
Score Input Methods
Manual Entry:This will display buttons for the digits 0-9, along with a No Score and possibly a ± button. The No Score button removes the current score entry completely (to simply clear the digits you have entered to re-enter the score, use the X button on the App Bar)
Increase/Decrease:This will display buttons such as +1, -1, +5, -5, etc., along with a No Score button. These buttons add or subtract from the currently entered score (for example, to enter a score of 27, you could tap +10,+10,+5,+1,+1, or +50,-10,-10,-1,-1,-1, or any other combination that adds up to the desired score). The No Score button removes the current score entry completely (to simply clear the score you have entered to re-enter the score, use the X button on the App Bar)
Allow Negative Scores Checkbox

When this checkbox is selected, you will be able to enter negative scores. In Manual Entry, a ± button will be displayed to make a score positive or negative. A score of 0 is always valid, regardless of whether this checkbox is selected. In Increase/Decrease entry mode, a score of 0 can be entered by tapping +1,-1 (or any other combination that adds up to 0). Keep in mind that a score of 0 is not the same as a blank score. A 0 is a 0, but a blank score is not recorded as a score when the scores are submitted.

Scorekeeping Rules
Take Turns:Use this method when players will be receiving scores in order, where the next player will not receive a score until after the previous player has received a score. When you try to submit scores that do not meet these rules, you will be asked if you forgot to enter a score and still want to submit the scores.
Separate Scores:Use this method when some players may be receiving more scores than others, and the scores may be received in any order.
Continuing A Saved Game

If you have previously saved scores, you will see a Continue Saved Game button. This button will load the saved scores, names, and settings (regardless of what is currently entered/selected).

The Score Entry Page
The Scoreboard
The scoreboard is made up of colored columns for each player and contains several parts, as follows:
Name:The player's name can be used to select the player to enter a score. When a player is selected, their name will be displayed on a black background.
Submitted Scores:Submitted scores are displayed on a colored background, and cannot be edited.
Unsubmitted Scores:Unsubmitted scores are displayed on a lighter background, and can be edited. To select a score to edit, tap that score. The currently selected score will be displayed on a white background.
Totals:The totals are displayed at the bottom of each column and are automatically updated.
The App Bar Buttons
Start a new game with the same players and settings
Remove all unsubmitted scores
Submit any unsubmitted scores (scores cannot be edited after they are submitted)
Clear the current score so that it can be re-entered
The App Bar Menu
The App Bar Menu is used to Save/Load/Delete saved scores, names, and settings (both submitted and unsubmitted scores are saved). Only one set of scores, names, and settings can be saved at a time.
Save current scores:Saves the current scores, if a set of scores was previously saved, it will be overwritten.
Load saved scores:If any scores were previously saved, they will be loaded.
Delete saved scores:If any scores were previously saved, they will be deleted. It is a good idea to delete saved scores once a game is over so that you do not see the Continue Saved Game button on the setup screen once you have finished the game.