Vodafone’s new portable wi-fi device allows up to five users to share a 3G broadband connection – but it won’t support speeds offered by the network’s HSPA+ upgrade.

While some mobile broadband devices will allow theoretical maximum download speeds of up to 21MB/s on HSPA+, the MiFi 2352 device will remain capped at the current 3G broadband upper limit of 7.2MB/s.

Vodafone’s external communications manager Paul Brislen told ConnectMe that the telco hopes to offer similar, compatible devices as the HSPA+ roll-out continues in 2010.

Weighing in at 100g and reportedly smaller than most mobile phones, the battery-powered MiFi can be used continuously for up to four hours on a single charge. It can even store documents for sharing amongst connected users, with a MicroSD slot allowing up to 16GB in storage.

Vodafone considers the device to be an ideal solution for a mobile workgroup or even for PC gamers to set up a mobile connection for LAN gaming.

“Whether you want to work collaboratively on a project or just need to have multiple devices connecting together while you’re out and about, the MiFi gives you the best of Vodafone’s 3G broadband connection and combines it with all the benefits of wi-fi to deliver a great product,” said Vodafone’s GM of Products Pricing and Internet Kursten Shalfoon.

The MiFi 2352 is on sale exclusively on Vodafone’s online store from today at an RRP of $499. Those who purchase the MiFi with a 1GB data plan will receive the device at the discounted price of $299.