"It's been awhile since Max Levchin's job forced him to pull an all-nighter. But the co-founder and former chief technology officer of PayPal has found himself working around the clock lately to launch his new Internet company, Slide. The San Francisco company, which he started last year, is Levchin's first big plunge into an Internet start-up since cashing in on eBay's $1.5 billion purchase of PayPal in 2002. The free service, which the 12-person company plans to open to the Web-surfing public on Monday, CNET News.com has learned, combines aspects of social networking, photo sharing, Web syndication and e-commerce. At the heart of Slide is a downloadable desktop program that indexes all the photos on the user's hard drive and creates a slide show at the edge of the screen."Slide is a new photo sharing service that uses RSS to distribute photos to others who have subscribed to your photo collection. I'm just installing it now to test it out - anyone have any first impressions?