Adobe just announced a bunch of upgrades to Acrobat.com, its suite of web collaboration applications. The most important: It’s releasing an application for the iPhone and BlackBerry.

Mobile support has been a big missing piece for Acrobat.com, since a big selling point of applications like Adobe’s (as well as Google Docs and the upcoming web versions of Microsoft Office) is the ability to access your documents anywhere. Now Acrobat.com users can not only read and share files from their phones, but also upload documents and send faxes.

Acrobat.com started out as a free service, but in June it launched premium versions, where users pay for web meetings and the ability to create PDF documents. The mobile app follows that model. Free users can send two faxes and upload up to five documents from their phone each month, but if you want to do more, you’ll have to upgrade to a pay version.

The other major improvement is the creation of a central environment to view all your files in Acrobat.com, rather than having to view all your documents in Buzzword, all your spreadsheets in Tables, and all your presentations in, uh, Presentations. This may be what Product Manager Erik Larson was referring to when I asked him in June about future improvements, and he said, “I don’t necessarily think presentations, spreadsheets, documents are these three separate things, even though I know that’s the way the world thinks right now.”

The new version of Acrobat.com will launch at 3am Pacific on Saturday, Nov. 21. Larson told me in June that the site has 5 million registered users. (I’ve asked for more recent numbers and will update if I receive them.)

This week we’re joining in Google’s celebration of all things mobile to make sure you’re aware of the power you hold in your fingertips with YouTube on your phone. Not only can you watch millions of videos, but also you can upload videos directly from your device; maybe it’s footage of a breaking news event, the drama unfolding at the party Saturday night, or your baby’s first steps. Since we want to provide the best experience for each of you, we occasionally have different solutions for different phones — so read on to find out what’s available for yours.

Almost any phone with a browser can access the YouTube mobile website at m.youtube.com. (Some mobile phone operators offer a pre-programmed link, so if a YouTube link displays on your phone, click it to visit our site.) Once there, you can access your YouTube account, your favorite videos, your uploads and your favorite channels. You can also share, rate, and comment directly from the mobile website to other YouTube users. Or, if you’ve captured a great moment, upload your own video by sending it via MMS or email (sign in to YouTube and click here to get your unique address) and it will appear almost instantly on the website.

In addition to the website, you can also play high-quality YouTube videos with special applications on many devices, including Windows Mobile, Symbian S60, iPhone, Android, Palm Pre, and BlackBerry Storm v1 devices. For devices not listed, it means that there were either technical limitations to getting YouTube on the phone, or the experience wasn’t a significant improvement over just visiting the mobile website. FYI, the apps for iPhone, Android and Palm Pre also support direct-to-YouTube uploads. To install the app on a compatible phone, visit m.youtube.com/app.

Keep an eye out this week as we tweet some useful tips and tricks for YouTube mobile. And be sure to let us know how you’re liking it and what we can do to improve the mobile experience. To get started, just Go Mobile!

Robin Norvell, YouTube Mobile Operations, recently watched “Mobile Tricks.”

Portland, Maine-based Certify, which offers an online expense management software suite for SMBs, has announced that it has secured $1.9 million in funding from “strategic and individual” investors. These investors include FluffCo (entrepreneur Irving Levin’s investment firm), Transactis CEO Joe Proto, angel investor Esther Dyson and Alpine Meridian chief exec William Benedict.

The company offers travel expense software and other expense report solutions on-demand, allowing its client’s employees to capture expense receipts via camera phone, SMS message, e-mail, voice mail, scan, fax, or image upload, with support for the iPhone, Blackberry and Windows Mobile devices. Certify delivers its SaaS solutions both indirectly through its Partner Network and directly to corporate users and individuals via Certify.com.

Founded in 2008, the company was bootstrapped by Robert and Alan Neveu. The two men previously founded RecruiterNet, an applicant tracking software firm that was acquired by First Advantage back in November 2005.

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