Inventory from Excel 2008 to QB 2010
Is there an importer tool for inventory from excel 2008 to QB?
Is there an importer tool for inventory from excel 2008 to QB?

Not really. I'm assuming that you need to do this on an going basis. You can look online to see if you can can find a tool that will convert Excel files to IIF which is what you need. You can find the IIF specs on the product's help file. More than likely whatever you find it will be Windows only.
You can can develop a program that will take the file and do the conversion but that takes skills to do and if you run into problems Intuit doesn't provide much help.
You can also use modify the Excel file using the IIF specs and convert the file manually. However IMHO this is too much work (specially if you need to do it frequently) and the process is very error prone but you can give it a try and see if it suits you.
Best

This KB article (which is very old) might be of some help—or not.
http://support.quickbooks.intuit.com/support/warehouse/faqs/qbw2003/11750...

I discussed how to do this with iif in quite a bit of detail here: