Spec URL: http://pingou.fedorapeople.org/RPMs/R-RCurl.spec
SRPM URL: http://pingou.fedorapeople.org/RPMs/R-RCurl-1.5.0-1.fc14.src.rpm

Description: 
The package allows one to compose general HTTP requests and provides convenient functions to fetch URIs, get & post forms, etc. and process the results returned by the Web server. This provides a great deal of control over the HTTP/FTP/... connection and the form of the request while providing a higher-level interface than is available just using R socket connections. Additionally, the underlying implementation is robust and extensive, supporting FTP/FTPS/TFTP (uploads and downloads), SSL/HTTPS, telnet, dict, ldap, and also supports cookies, redirects, authentication, etc.

The warning about the -devel ("only-non-binary-in-usr-lib") can be safely ignore for R packages.