I’ve just found a very nice article for utilizing Silverlight toolkit charts on Widows Phone 7. very vey nice and the best thing is it working 

The main trick: use November 2009 Silverlight 3 Control Toolkit.
Read the rest for details and troubleshooting
Enjoy
Here is some more T-SQL fun: number generator
I found this code in comments of this blog post and it is so cools so I decided to save it here for reference:
-- use number generation
WITH Numbers3( n ) AS ( SELECT 1 UNION SELECT 0 ),
Numbers2( n ) AS ( SELECT 1 FROM Numbers3 n1 CROSS JOIN Numbers3 n2 ),
Numbers1( n ) AS ( SELECT 1 FROM Numbers2 n1 CROSS JOIN Numbers2 n2 ),
Numbers0( n ) AS ( SELECT 1 FROM Numbers1 n1 CROSS JOIN Numbers1 n2 ),
NumbersBase ( n ) AS ( SELECT 1 FROM Numbers0 n1 CROSS JOIN Numbers0 n2 ),
Numbers ( Number ) AS
(
SELECT n
FROM ( SELECT ROW_NUMBER() OVER (ORDER BY n)
FROM NumbersBase ) D ( n )
WHERE n <= 50
)
SELECT * FROM Numbers
I am back in T-SQL fun and had interesting problem to solve – group rows by date and hour but eliminate minutes, seconds and milliseconds. Thus here is a handy function to do that:
DECLARE @Date datetime= getdate();
SELECT DATEADD(ms, -1*DATEPART(ms, @date), -- remove milliseconds
DATEADD(SECOND, -1*DATEPART(SECOND, @date), -- remove seconds
DATEADD(MINUTE, -1*DATEPART(MINUTE, @date), -- remove minutes
@date)))
I hope you know how to create function from this code
.
Have fun!