London-based Genient offers a Web services integration platform, while San Francisco-based vVault specialises in mobile productivity applications and software infrastructure.
Genient and vVault said they were working with a UK carrier, but would not disclose which one. The collaboration marks vVault's first move into Europe.
Clive Longbottom, service director with analysts Quocirca was sceptical about the project. Genient is basically an Application Service Provider (ASP), he said, claiming, "The market still isn't ready for ASPs. First the customer needs to be secure with handing out an environment and having it hosted for them.
"There is a lot of interest in mobility, but not a lot of people [users] are getting in to it," he added.
The services, based on standards such as Soap and XML, are to be offered on GPRS networks, Genient and vVault said.
GPRS allows packet-switched wireless connections at about the speed of a traditional PC modem.