As the year draws to an end, it's time to look back at what happened in the world of mobile gaming during 2009.

Equally, the lessons of history are useless without a future to demonstration what we've learnt, so as well as asking various notables about their view on the past 12 months, we're also getting them to look ahead to 2010.

You can see the full list of our end of year interviews here.

With a history in casual games development, Brian Robbins launched Riptide in September 2009.

Its debut title is Gravity Sling, which was developed at the iPhone Game Jam ad, and released on 5th November.

Pocket Gamer: What was the most significant event of 2009?

Brian Robbins: I think the most significant event has been the launch of the Droid. Not because the Droid itself is taking the world by storm like the iPhone, but because it's the first phone that's even come close to capturing the same mindshare as the iPhone.

I think when we look back on 2009, we'll see that the Droid was the first phone that started to create true competition for the iPhone.

What was the most significant event for Riptide?

Riptide released our first title Gravity Sling this year, so that's probably the most significant event for us.

Looking at the big picture though, Gravity Sling as it exists today wouldn't have been possible without the OS 3.0 launch and specifically in-app purchases. We definitely believe this model is the way forward for most of the apps which are 99c today and we're hoping to help push that forward.

What was your favourite mobile game of 2009?
Gravity Sling, of course, because we made it! : )

Seriously - It's probably Words With Friends. While I've played a lot of iPhone games this year, and quite a few have been really good, Words With Friends is the only game that I've consistently played for a long length of time, and I find myself actively playing on a daily basis.

What do you predict will be the most important trends in 2010?

The continued proliferation of next-gen mobile platforms.

The iPhone will continue to expand, hopefully onto more carriers in the US, and the Droid and others will have continued reach as well. While I think the iPhone will continue to be the dominant platform for mobile games in 2010, we'll definitely start to see more competition and other platforms may start to become viable for developers to focus on.

If you could enforce one New Year's resolution, what would it be?

Stop driving app prices through the floor in exchange for a short-term gain. In the long run this is going to destroy the viability of the market if we continue to shoot ourselves in the foot by providing bigger and better experiences for less and less money.

I'd like to see a market that can support professional development teams that can create solid games and then make a living without having to practically give away their game just to get onto the Top 10 lists for a few days.

Thanks to Brian for his time.

You can keep up-to-date with Riptide via its website, Facebook and Twitter.