It's great you are interested in the Siebel Open UI client, Do you have 'open' questions we can help
Yes, it possibly took us a while but now we are there: Browser independency for Siebel CRM. Clearly this opens a whole new set of possibilities for your Siebel implementation, many aspects around Siebel Open UI are already covered in the Siebel Open UI Deployment Guide, Note 1499842.1, so this is definitely 'the' place to start, but if you have questions, thoughts or suggestions you want to share with us, please let us know! Thank you!