what's up with CR 2011 and .NET RAS SDK

Do you mean SAP Crystal Reports for Visual Studio 2010 (Report Application Server .NET SDK ) Refer to the Developer Guide the topic about: What's new in the Report Application Server .NET SDK

http://help.sap.com/businessobject/product_guides/sapCRVS2010/en/xi4_rassdk_net_dg_en.zip

There are new stuff like:

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Crystal Reports Read-Only (RPTR) format

Crystal Reports Read-Only (RPTR) format lets you share Crystal reports while protecting your intellectual property. An RPTR file can be refreshed at run-time but the report definition cannot be modified or exported.

RPTR files can be viewed using a report viewer control. For security purposes, an RPTR file cannot be converted to an RPT. An RPTR file cannot be opened with a designer that can modify the report, for example, the SAP Crystal Reports 2011 designer, or the Visual Studio embedded designer.

You create an RPTR report by exporting an RPT report to RPTR format. If a file that includes a subreport file is exported to RPTR, both the subreport and report will be exported as RPTR. An RPTR file cannot be added as a subreport to an RPT.

New export formats

Microsoft Excel 2007 (XLSX) Data-Only

Reports can now be exported to Microsoft Excel 2007 (XLSX) format. XLSX format supports the 'Big Grid'. This feature allows for up to 16385 columns and 1,048,576 rows in a single workbook.

Crystal Reports Read-Only (RPTR)

Reports can be exported in the Crystal Reports Read-Only (RPTR) format using the Visual Studio Embedded designer, and the SDK. However, you cannot export RPT files to RPTR using the report viewer.

Thanks

Alphonse