Hi Anshul, are you aware the SAP Dashboards can easily display data in cross-tab format, regardless of what connection it is using and where it is published to? In addition, the SAP Dashboards that is published to BI Launchpad can be easily called in Netweaver Portal (if you are using Netweaver Portal). In my humble opinion, publishing to BI Launchpad is a better route. Otherwise, you lose the ability to deploy the dashboard to mobile devices like iPad.
Hope this helps.
simon