Forget the rose. This Valentine's Day you can send your loved ones multimedia messages with special holiday notes right to their mobile phones.

Skycore LLC's Cellyspace service enables users to upload the most relevant content from their hard drives and then edit, crop and compose their images, text, audio or video online into a meaningful slideshow.

"Cellyspace does not offer content," said Rich Eicher, president of Skycore, Boston. "Instead, we offer online tools facilitating user-generated and advertiser-generated composition and delivery of MMS messages and ringtones.

"So, our main idea for Valentine's day is that consumers can use their own images, audio and video to create personal, multimedia slide shows and directly send them to their loved one's mobile phone," he said.

"However, since Cellyspace is also used by enterprises for promotion and revenue generation, Valentine's Day offers artists and celebrities a timely way to reach out to their fans by creating their own unique Valentine MMS messages and promote them on their Web sites, in print or through broadcast."

Once satisfied with the online preview, they can then send it to their Valentine's phone. M-romance?

Skycore is a mobile value added service provider specializing in in-network-centric multimedia delivery technology. Its customers range from wireless carriers to advertisers, content providers and consumers.

Skycore's Cellyspace instant multimedia publishing and messaging platform gives users the tools to create mobile offerings. Cellyspace offers online tools that enable user- and advertiser-generated composition of MMS messaging, mobile multimedia content and ringtones.

Consumers can currently send text and pictures phone-to-phone. Content is limited to the files stored on their phone. Cellyspace allows them to select media from their computers and edit and crop.

Users can send poems with images or audio, meaningful ringtones, Web camera greetings, an "I Love You" MMS and a cartoon or celebrity character MMS.

Content is created, edited, converted and stored online at no charge, Skycore said. There are no subscription charges and no cost to send the first MMS message. After that it costs 20 cents to send an MMS.

In addition to the composing tools, Cellyspace also has publishing and broadcast tools for artists, content providers and publishers to sell their MMS content for a premium charge.

"The use of Cellyspace for mobile Valentine cards is just one of many, many applications for our online service," Mr. Eicher said.

"Currently very few consumers and enterprises truly understand the opportunities available to them in the mobile space," he said. "We thought this would be an interesting and timely way to broaden awareness of our MMS and ringtone tools."